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DISEASES AND FIRST AID - Q&A

Multiple Choice Questions:

1. Put a tick mark (✓) against the correct alternative in the following statements:

(a) Ring worm is caused by (i) Bacteria (ii) Protozoan (iii) Fungi (iv) Virus

Answer: (iii) Fungi
Explanation: Ringworm is a skin disease caused by fungi (moulds) resulting in ring-shaped patches on the skin.

(b) Deficiency of calcium causes (i) Poor growth of teeth and gums (ii) Goitre (iii) Anaemia (iv) Polio

Answer: (i) Poor growth of teeth and gums
Explanation: Calcium is essential for the formation of strong bones and teeth. Its deficiency leads to weak bones and poor dental health.

(c) Hay fever and asthma are (i) Deficiency diseases (ii) Genetic diseases (iii) Organic diseases (iv) Allergic diseases

Answer: (iv) Allergic diseases
Explanation: These are caused by hypersensitivity to certain substances like dust, pollen, or spores (allergens).

(d) Cataract is a disease of : (i) Ears (ii) Nose (iii) Eyes (iv) Throat

Answer: (iii) Eyes
Explanation: Cataract involves the eye lens turning opaque, which obstructs vision.

(e) Infectious diseases can be prevented by : (i) Medicines (ii) Proper food (iii) Immunisation (iv) Exercise

Answer: (iii) Immunisation
Explanation: Immunisation (vaccination) develops resistance in the body to fight against specific infectious germs.

(f) Which one of the following is a genetic disease ? (i) Scurvy (ii) Leukemia (iii) Goitre (iv) Haemophilia

Answer: (iv) Haemophilia
Explanation: Haemophilia is passed down from parents to children through genes (congenital) and affects blood clotting. Scurvy and Goitre are deficiency diseases, and Leukemia is a cancer.

(g) Which one of the following is a degenerative disease ? (i) Thalassemia (ii) Beri-beri (iii) Cataract (iv) Diabetes

Answer: (iii) Cataract
Explanation: Degenerative diseases occur due to old age and the malfunction of body organs. Cataract is a common example. Thalassemia is genetic, Beri-beri is a deficiency, and Diabetes is metabolic.

(h) Pellagra is one disease caused by the deficiency of : (i) Vit. B3 (ii) Vit. B1 (iii) Vit. C (iv) Vit. D

Answer: (i) Vit. B3
Explanation: Vitamin B3 is also known as Niacin. Its deficiency causes pellagra (skin pigmentation and swelling).

(i) Deficiency of Iodine in one's food can cause : (i) Beri-beri (ii) Goitre (iii) Scurvy (iv) Pellagra

Answer: (ii) Goitre
Explanation: Iodine is required for the production of thyroxine hormone. Lack of iodine causes swelling in the neck, known as Goitre.

(j) Which one of the following mineral deficiency diseases can be cured by eating a diet which include green leafy vegetables, banana, cereals, egg-yolk ? (i) Goitre (ii) Anaemia (iii) Brittle bones (iv) Pain in muscle contraction

Answer: (ii) Anaemia
Explanation: These foods are rich in Iron. Iron deficiency causes Anaemia (lack of haemoglobin).

(k) Which one of the following vitamin deficiency diseases can be cured by eating a diet which includes carrot, yellow fruits, vegetables, butter, milk, fish ? (i) Beri-beri (ii) Dermatitis (iii) Nightblindness (iv) Scurvy

Answer: (iii) Nightblindness
Explanation: These foods are rich in Vitamin A (Retinol), which is essential for the synthesis of visual purple in the retina. Deficiency leads to Nightblindness.

(l) Which one of the following is a communicable disease ? (i) Measles (ii) Cancer (iii) Heart attack (iv) Allergy

Answer: (i) Measles
Explanation: Measles is caused by a virus and can spread from one person to another. Cancer, Heart attack, and Allergies are non-communicable.


Short Answer Questions :

1.

(a) What is a non-communicable disease?

A non-communicable (or non-infectious) disease is a disease that cannot spread from one person to another. These diseases are not caused by germs but are due to other factors such as improper functioning of body organs, dietary deficiencies, or genetic defects. Examples include Diabetes and Heart attacks.

(b) What is a deficiency disease ?

A deficiency disease is a condition caused by the lack of specific nutrients (vitamins, minerals, proteins, etc.) in the diet over a long period. For example, Scurvy is caused by a deficiency of Vitamin C.

(c) What are communicable diseases? How can they be avoided?

Communicable (or infectious) diseases are those which spread from an infected person to a healthy person through the entry of microorganisms (pathogens) like bacteria, viruses, or fungi.
They can be avoided by: 1. Maintaining personal and public hygiene. 2. Drinking boiled or purified water. 3. Eating fresh, covered food and washing hands before meals. 4. Vaccination (Immunization) against specific diseases. 5. Preventing the breeding of vectors like mosquitoes and flies.

(d) Biting nails should be strictly avoided. Give reason.

Biting nails should be avoided because dirt and disease-causing germs (pathogens) often stick to the nails. When you bite your nails, these germs enter the mouth and digestive system, potentially causing diseases.

(e) Regular exercise and proper rest is a must. Give reason.

Regular exercise is necessary to keep muscles active, help normal functioning of the heart and lungs, and ensure better blood circulation. Proper rest and sleep (6-8 hours) are essential for the body to repair itself and recover from fatigue, ensuring mental and physical well-being.

(f) Children eating more of fast food tend to suffer from obesity (overweight). Comment.

Fast foods (like burgers, pizzas, etc.) often contain high amounts of fats and carbohydrates (calories) but lack essential vitamins and minerals. When a child consumes more calories than required by the body, the excess energy is stored as fat. This accumulation leads to obesity, which is harmful to health.

(g) How can we control spreading of diseases by mosquitoes and houseflies ?

We can control them by: 1. Keeping garbage in covered bins so flies cannot breed on them. 2. Not allowing water to stagnate in coolers, pots, or drains to prevent mosquito breeding. 3. Using wire meshes on windows and doors. 4. Spraying insecticides or using mosquito repellents.

(h) Public hygiene is equally important as personal hygiene. Give reasons.

Personal hygiene keeps one's own body clean, but if the surroundings are dirty (public hygiene), diseases can still spread. Improper disposal of waste, stagnant water, and open drains in the neighborhood become breeding grounds for rats, flies, and mosquitoes, which carry germs to healthy people. Therefore, a clean environment is vital for community health.

2. Name the following :

(a) A viral disease caused due to unhealthy sexual contact

AIDS (Acquired Immune Deficiency Syndrome)

(b) A bacterial disease caused due to contaminated water

Cholera

(c) A disease caused due to Plasmodium

Malaria

(d) A disease caused due to the bite of female Culex mosquito

Elephantiasis

(e) A viral disease spread by the bite of a dog

Rabies (Hydrophobia)

(f) A disease caused due to choking of coronary artery

Heart attack (Coronary thrombosis)

(g) Two diseases caused due to deficiency of protein in the diet of a child.

Kwashiorkor and Marasmus

(h) Any three water-borne disease.

Cholera, Typhoid, Jaundice (Hepatitis)

3. Write short (1-2 sentences) notes on the following :

Disease, immunisation, pathogen, allergy, AIDS.

Disease: A disease is a departure from normal health through structural or functional disorder of the body, causing specific symptoms.

Immunisation: It is the process of making an individual immune or resistant to an infectious disease, typically by the administration of a vaccine.

Pathogen: Pathogens are disease-causing germs or microorganisms, such as bacteria, viruses, fungi, and protozoa, that enter the body and cause infection.

Allergy: An allergy is an unpredictable reaction of the body to a particular substance (allergen) like dust, pollen, or certain foods, often resulting in sneezing, rashes, or itching.

AIDS: AIDS (Acquired Immune Deficiency Syndrome) is a serious viral disease caused by HIV that weakens the body's immune system, making the person prone to other infections.

4. Fill in the blanks by selecting suitable words given below :

(clotting, goitre, insulin, rickets, iron, proteins)

(a) Anaemia is caused due to the deficiency of iron.

(b) Deficiency of Vit. D causes rickets in children.

(c) Deficiency of iodine in the diet may cause goitre.

(d) Diabetes is caused due to undersecretion of insulin.

(e) Kwashiorkor is caused due to the deficiency of proteins.

(f) Haemophilia is a disease characterised by slow clotting of the blood.

5. Find the odd one out :

(a) Typhoid, cholera, jaundice, tuberculosis, tetanus.

Answer: Jaundice
Reason: Jaundice is caused by a Virus, whereas Typhoid, Cholera, Tuberculosis, and Tetanus are caused by Bacteria.

(b) Cold, AIDS, plague, malaria, measles.

Answer: Malaria
Reason: Malaria is caused by a Protozoan (Plasmodium). Cold, AIDS, and Measles are caused by Viruses. (Note: Plague is bacterial, but Malaria is the distinct protozoan disease highlighted in this chapter).

(c) Scurvy, rickets, haemophilia, pellagra, nightblindness.

Answer: Haemophilia
Reason: Haemophilia is a Genetic disease. All others (Scurvy, Rickets, Pellagra, Nightblindness) are Deficiency diseases caused by lack of vitamins.

(d) Proteins, carbohydrates, fats, minerals, cancer.

Answer: Cancer
Reason: Cancer is a disease. Proteins, carbohydrates, fats, and minerals are nutrients found in food.

6. Fill in the blank in the following table :
Vitamin Name of the deficiency diseases Source of vitamin Function of vitamin
(a) Vitamin A Nightblindness Carrot, yellow fruits, butter, milk Synthesis of visual purple of retina
(b) Vitamin B1 (Thiamine) Beri-beri Whole grain, eggs, nuts Carbohydrate metabolism, normal functioning of nerves
(c) Ascorbic acid Scurvy (bleeding gums) Citrus fruits, tomatoes, germinating seeds Develops immunity, healthy gums
(d) Vitamin D (Calciferol) Rickets (in childhood) bones turn soft Egg yolk, fish liver oil, sunlight Controls calcium-phosphorus metabolism

Long Answer Questions (Write the anser in your note-book)

1. What is vaccination ? Mention the four ways in which vaccine's are prepared, giving the name of one disease for which each type of vaccine is used.

Vaccination is the practice of artificially introducing germs or germ substances (vaccines) into the body to develop resistance (immunity) to specific diseases.
Four ways vaccines are prepared: 1. Killed germs: Used for diseases like Typhoid (TAB vaccine). 2. Living weakened germs: Germs are treated to become weak. Used for Measles or Polio (Salk's vaccine). 3. Living fully virulent germs: Used for Smallpox (using cowpox virus). 4. Toxoids: Extracts of toxins secreted by bacteria are made harmless. Used for Tetanus and Diphtheria.

2. Burns can be superficial burns, deep burns or chemical burns. What emergency care you would suggest in each case.

Superficial burns: Pour cold water over the burnt area. Dry the portion gently and cover with sterile dressing. Do not apply oily substances.
Deep burns: Never use water. Cover the injured part with a sterile dressing or clean cloth and take the patient to a doctor immediately.
Chemical burns (acid/chemicals): Wash with plenty of running water for 10 minutes to wash away the chemical. Then cover with a dressing.

3. Describe the ways in which communicable diseases are transmitted through various indirect methods.

Indirect transmission occurs when pathogens spread without direct physical contact: 1. Touching contaminated items: Using towels, utensils, or bedding used by an infected person can spread germs (e.g., Chickenpox). 2. Contaminated food and water: Intestinal diseases like Cholera and Typhoid spread when germs from excreta enter water or food sources. 3. Vectors (Carriers): Insects like houseflies carry germs from garbage to uncovered food. Mosquitoes inject germs directly into the blood (e.g., Malaria, Dengue). 4. Air: Droplets released during sneezing or coughing by an infected person remain suspended in the air and are inhaled by healthy people (e.g., Common cold, TB, Influenza).

4. Given alongside is a crossword puzzle. Read the clues across and clues downward, and fill up the blank squares. Check up your answers with the correct solution given at the end.

Clues Across (Answers): 1. Category of pathogen that causes diseases, like common cold and mumps: VIRUS 5. This is the vaccine for preventing tuberculosis: BCG 6. An organ usually affected by tuberculosis: LUNG 7. Jumbled spelling of one of the most common insect which visits our exposed foods and contaminates them (ISFEL): FLIES 8. Cover this part of your body by a handkerchief while sneezing to prevent droplet infection to others: NOSE 9. These may readily grow in your hair, if you do not wash it regularly: LICE 10. A disease that weakens body's defence system against infections: AIDS

Clues Down (Answers): 1. Germ or germ - substance introduced into the body to prevent occurrence of an infectious disease: VACCINE 2. A disease caused by the bite of an infected dog, and which affects the central nervous system: RABIES 3. A disease in which the eyes, the skin and the urine turn yellow: JAUNDICE 4. The disease pertussis is popularly known as whooping .......: COUGH

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Multiple Choice Questions - Test your understanding with these MCQs. Click "Show Answer" to reveal the correct answer.

Question 1How is 'Health' defined according to the World Health Organization's perspective mentioned in the text?

Correct Answer: A state of complete physical, mental, and social well-being

Question 2What is the definition of a 'Disease' as per the chapter?

Correct Answer: A departure from normal health through structural or functional disorder

Question 3Which of these is a characteristic feature of a healthy human being?

Correct Answer: Regular activity of bladder and bowels

Question 4What are the two major categories of diseases mentioned in the text?

Correct Answer: Communicable and Non-communicable

Question 5Non-communicable diseases are also known as:

Correct Answer: Non-infectious diseases

Question 6Which of the following is an example of a metabolic disease?

Correct Answer: Diabetes mellitus

Question 7Communicable diseases are caused by germs called:

Correct Answer: Pathogens

Question 8Which hormone's deficiency causes Diabetes mellitus?

Correct Answer: Insulin

Question 9What happens in the body when a person suffers from Uraemia?

Correct Answer: Toxic wastes accumulate in the blood due to kidney failure

Question 10Which genetic disease is characterized by very slow blood clotting?

Correct Answer: Haemophilia

Question 11Thalassemia is a genetic disease affecting which part of the blood?

Correct Answer: Haemoglobin in Red Blood Cells

Question 12What is an 'Allergen'?

Correct Answer: A substance that causes an unpredictable reaction (allergy)

Question 13Which of these is a common allergic reaction mentioned in the text?

Correct Answer: Asthma

Question 14Kwashiorkor and Marasmus are caused by the deficiency of which nutrient?

Correct Answer: Proteins

Question 15Nightblindness is caused by the deficiency of which vitamin?

Correct Answer: Vitamin A

Question 16Which vitamin is essential for the synthesis of visual purple of the retina?

Correct Answer: Vitamin A (Retinol)

Question 17The deficiency disease 'Beri-beri' is linked to which vitamin?

Correct Answer: Vitamin B1 (Thiamine)

Question 18Pellagra is a disease caused by the lack of:

Correct Answer: Vitamin B3 (Niacin)

Question 19Which vitamin is necessary for developing immunity and the permeability of capillary walls?

Correct Answer: Vitamin C (Ascorbic acid)

Question 20Scurvy is characterized by which of the following symptoms?

Correct Answer: Bleeding gums

Question 21Rickets, a disease where bones turn soft in childhood, is caused by a lack of:

Correct Answer: Vitamin D (Calciferol)

Question 22What is the primary function of Vitamin D in the body?

Correct Answer: Controls calcium-phosphorus metabolism

Question 23Excess calories stored as fat in the body leads to a condition called:

Correct Answer: Obesity

Question 24Which mineral is essential for the formation of haemoglobin in RBCs?

Correct Answer: Iron

Question 25The deficiency of which mineral leads to Anaemia?

Correct Answer: Iron

Question 26Goitre is a disease of the thyroid gland caused by the deficiency of:

Correct Answer: Iodine

Question 27Which minerals help in muscular contraction and nerve cell activity?

Correct Answer: Sodium and Potassium

Question 28What is the consequence of Calcium deficiency in the human body?

Correct Answer: Weak and brittle bones and teeth

Question 29Neoplastic diseases refer to the uncontrolled growth of cells, commonly known as:

Correct Answer: Cancers or tumors

Question 30Agents that cause cancer are called:

Correct Answer: Carcinogens

Question 31A degenerative disease where the eye lens turns opaque is called:

Correct Answer: Cataract

Question 32Arteriosclerosis is a condition involving the:

Correct Answer: Hardening of arterial walls

Question 33Inflammation of joints is known as:

Correct Answer: Arthritis

Question 34How do communicable diseases primarily spread?

Correct Answer: Through microorganisms/pathogens from an infected to a healthy person

Question 35Common cold and Influenza spread through which method?

Correct Answer: Droplet infection (sneezing and coughing)

Question 36Mumps is a viral disease characterized by the swelling of which glands?

Correct Answer: Parotid glands

Question 37Which serious viral disease is marked by small pustules all over the body and has been almost eradicated from India?

Correct Answer: Smallpox

Question 38Poliomyelitis is a viral disease that primarily causes:

Correct Answer: Paralysis of the limbs

Question 39Rabies, also known as hydrophobia, is transmitted through the saliva of:

Correct Answer: Rabid animals like dogs or foxes

Question 40Which organ is primarily affected by Jaundice/Hepatitis?

Correct Answer: Liver

Question 41What does AIDS stand for?

Correct Answer: Acquired Immune Deficiency Syndrome

Question 42HIV, the virus causing AIDS, primarily weakens what in the human body?

Correct Answer: The immunity or self-defence mechanism

Question 43Tuberculosis (TB) is a bacterial disease that usually affects which organ?

Correct Answer: Lungs

Question 44Which bacterial disease is known for causing 'locked jaws'?

Correct Answer: Tetanus

Question 45Cholera is an intestinal infection that spreads through:

Correct Answer: Contaminated food and water

Question 46Ringworm is a disease of the skin, hair, or nails caused by:

Correct Answer: Fungi

Question 47Athlete's foot is a fungal infection that specifically attacks the skin of the:

Correct Answer: Foot, particularly between toes

Question 48Malaria is caused by a protozoan called:

Correct Answer: Plasmodium

Question 49Which insect is the vector for Malaria?

Correct Answer: Female Anopheles mosquito

Question 50Amoebiasis or amoebic dysentery is caused by:

Correct Answer: Entamoeba
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True or False Questions - Determine whether each statement is true or false. Click "Show Answer" to reveal the correct answer.

Statement 1Health is defined only as the absence of disease or infirmity.

Correct Answer: False

Statement 2Physical and mental health are inter-related.

Correct Answer: True

Statement 3A healthy person generally has clear skin and bright eyes.

Correct Answer: True

Statement 4Disease is a departure from normal health through structural or functional disorder.

Correct Answer: True

Statement 5Non-communicable diseases are caused by germs called pathogens.

Correct Answer: False

Statement 6Diabetes is an example of a non-communicable disease.

Correct Answer: True

Statement 7Communicable diseases are also known as infectious diseases.

Correct Answer: True

Statement 8Pathogens can reach a healthy person through insect bites or contaminated water.

Correct Answer: True

Statement 9Metabolic diseases are caused by the malfunctioning of body organs.

Correct Answer: True

Statement 10In diabetes, the liver fails to produce sufficient insulin.

Correct Answer: False

Statement 11Insulin is the hormone that controls sugar levels in the blood.

Correct Answer: True

Statement 12Coronary thrombosis obstructs blood supply to the heart muscles.

Correct Answer: True

Statement 13Nephrons help filter out harmful nitrogenous waste from the blood.

Correct Answer: True

Statement 14Uraemia is caused by the malfunctioning of the heart.

Correct Answer: False

Statement 15Genetic diseases develop at the time of embryonic development.

Correct Answer: True

Statement 16Haemophilia is a disease where blood clotting takes place very quickly.

Correct Answer: False

Statement 17Thalassemia involves defective haemoglobin in Red Blood Cells.

Correct Answer: True

Statement 18An allergen is a substance that causes an unpredictable reaction in the body.

Correct Answer: True

Statement 19Asthma and eczema are common allergic reactions.

Correct Answer: True

Statement 20Kwashiorkor and marasmus are caused by protein deficiency.

Correct Answer: True

Statement 21Vitamin A is also known as Retinol.

Correct Answer: True

Statement 22Nightblindness is caused by a deficiency of Vitamin C.

Correct Answer: False

Statement 23Vitamin B1 deficiency causes a disease called Beri-beri.

Correct Answer: True

Statement 24Vitamin B3 deficiency leads to Pellagra.

Correct Answer: True

Statement 25Ascorbic acid is the scientific name for Vitamin C.

Correct Answer: True

Statement 26Scurvy is characterized by swollen and bleeding gums.

Correct Answer: True

Statement 27Vitamin D helps control calcium-phosphorus metabolism.

Correct Answer: True

Statement 28Rickets causes bones to turn soft in childhood.

Correct Answer: True

Statement 29Iron is essential for the formation of haemoglobin in RBCs.

Correct Answer: True

Statement 30Goitre is caused by a deficiency of Calcium.

Correct Answer: False

Statement 31Iodine deficiency controls thyroxine metabolism.

Correct Answer: True

Statement 32Anaemia is caused by a deficiency of Vitamin A.

Correct Answer: False

Statement 33Excess calories stored in the body as fat result in obesity.

Correct Answer: True

Statement 34Obesity is harmless to the human body.

Correct Answer: False

Statement 35Cancer involves the uncontrolled growth of body cells.

Correct Answer: True

Statement 36Agents that cause cancer are called carcinogens.

Correct Answer: True

Statement 37Cataract and arthritis are examples of degenerative diseases.

Correct Answer: True

Statement 38Arteriosclerosis is the hardening of arterial walls due to aging.

Correct Answer: True

Statement 39Potassium cyanide is a physical agent that causes disease.

Correct Answer: False

Statement 40Communicable diseases spread through microorganisms like viruses and bacteria.

Correct Answer: True

Statement 41Common cold spreads through moisture droplets during sneezing.

Correct Answer: True

Statement 42Mumps involves the swelling of the thyroid gland.

Correct Answer: False

Statement 43Smallpox is marked by small pustules all over the body.

Correct Answer: True

Statement 44Poliomyelitis causes paralysis of the limbs.

Correct Answer: True

Statement 45Rabies is also known as hydrophobia.

Correct Answer: True

Statement 46The rabies virus is transmitted through the saliva of a rabid animal.

Correct Answer: True

Statement 47Jaundice is a disease of the lungs.

Correct Answer: False

Statement 48HIV causes AIDS by weakening the body's immunity.

Correct Answer: True

Statement 49Tuberculosis bacteria spread through the sputum of an infected person.

Correct Answer: True

Statement 50Tetanus germs enter through open and unclean cuts.

Correct Answer: True
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Fill in the Blanks - Complete the sentences by filling in the missing words. Click "Show Answer" to check your response.

Question 1Health is defined as a state of complete physical, mental and ______ well-being.

Correct Answer: social

Question 2A departure from normal health through structural or functional disorder of the body is called ______.

Correct Answer: disease

Question 3Diseases that are not caused by germs and cannot spread from one person to another are called ______ diseases.

Correct Answer: non-communicable

Question 4Germs that cause communicable diseases are scientifically known as ______.

Correct Answer: pathogens

Question 5Metabolic diseases are also referred to as ______ diseases.

Correct Answer: organic

Question 6In diabetes, the ______ fails to produce sufficient insulin.

Correct Answer: pancreas

Question 7The hormone that controls the sugar level in the blood is ______.

Correct Answer: insulin

Question 8Coronary ______ is a condition where blood supply to the heart muscles is obstructed.

Correct Answer: thrombosis

Question 9The structural and functional units of kidneys that filter nitrogenous wastes are ______.

Correct Answer: nephrons

Question 10Accumulation of toxic wastes in the blood due to kidney failure causes a disease called ______.

Correct Answer: uraemia

Question 11Genetic diseases are also known as ______ diseases because they develop at the time of embryonic development.

Correct Answer: congenital

Question 12A genetic disease where blood clotting takes place very slowly is ______.

Correct Answer: haemophilia

Question 13______ is a genetic disease characterized by defective haemoglobin in Red Blood Cells.

Correct Answer: Thalassemia

Question 14An unpredictable reaction to a particular substance is called an ______.

Correct Answer: allergy

Question 15The substance that triggers an allergic reaction in the body is called an ______.

Correct Answer: allergen

Question 16Common allergic reactions include asthma, eczema, and ______.

Correct Answer: diarrhea

Question 17A diet lacking in nutrients like ______ results in degeneration of muscles and loss in body weight.

Correct Answer: proteins

Question 18Kwashiorkor and ______ are common protein deficiency diseases.

Correct Answer: marasmus

Question 19The deficiency of Vitamin A, also known as ______, leads to night blindness.

Correct Answer: retinol

Question 20Vitamin B1 is scientifically called ______.

Correct Answer: thiamine

Question 21The deficiency of Vitamin B1 causes the disease ______.

Correct Answer: beri-beri

Question 22Pellagra is caused by the deficiency of Vitamin B3, also known as ______.

Correct Answer: niacin

Question 23Vitamin C is also known as ______ acid.

Correct Answer: ascorbic

Question 24The disease characterized by bleeding gums due to Vitamin C deficiency is ______.

Correct Answer: scurvy

Question 25Vitamin D, or ______, helps control calcium-phosphorus metabolism.

Correct Answer: calciferol

Question 26A deficiency of Vitamin D in children leads to ______, where bones turn soft.

Correct Answer: rickets

Question 27The mineral essential for the formation of bones and teeth and for blood clotting is ______.

Correct Answer: calcium

Question 28A deficiency of ______ and potassium can cause dehydration and muscle pain.

Correct Answer: sodium

Question 29Iron is required for the formation of ______ in Red Blood Cells.

Correct Answer: haemoglobin

Question 30The deficiency of iron in the diet leads to ______.

Correct Answer: anaemia

Question 31The mineral ______ controls thyroxine metabolism and general body growth.

Correct Answer: iodine

Question 32A swelling in the neck caused by iodine deficiency is called ______.

Correct Answer: goitre

Question 33Excess energy stored in the body as fat leads to ______, which is harmful to health.

Correct Answer: obesity

Question 34Diseases involving uncontrolled growth of body cells are called ______ diseases.

Correct Answer: neoplastic

Question 35Agents that cause cancer, such as radiation or tobacco, are called ______.

Correct Answer: carcinogens

Question 36Diseases that occur due to the deterioration of body cells and organs with age are called ______ diseases.

Correct Answer: degenerative

Question 37The hardening of arterial walls which reduces blood flow is called ______.

Correct Answer: arteriosclerosis

Question 38Inflammation of joints, common in old age, is called ______.

Correct Answer: arthritis

Question 39______ is a degenerative eye disease where the lens turns opaque.

Correct Answer: Cataract

Question 40Sunburn and heat stroke are examples of diseases caused by ______ agents.

Correct Answer: physical

Question 41Chemical agents like mercury and ______ cyanide can cause poisoning.

Correct Answer: potassium

Question 42Influenza, also known as flu, spreads through ______ infection.

Correct Answer: droplet

Question 43Mumps is the swelling of the ______ glands located below the ears.

Correct Answer: parotid

Question 44Smallpox is characterized by small ______ all over the body.

Correct Answer: pustules

Question 45The viral disease ______ causes paralysis of the limbs.

Correct Answer: poliomyelitis

Question 46Rabies, also known as ______, is caused by the bite of a rabid animal.

Correct Answer: hydrophobia

Question 47The rabies virus is transmitted through the ______ of an infected animal.

Correct Answer: saliva

Question 48Hepatitis is a disease that affects the ______.

Correct Answer: liver

Question 49In jaundice, the skin and eyes turn yellow because of the malfunctioning of the ______.

Correct Answer: liver

Question 50AIDS stands for Acquired ______ Deficiency Syndrome.

Correct Answer: Immune
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Short Answer Questions - Practice concise answers to these questions. Click "Show Answer" to reveal the response.
Question 1

What is health a state of complete physical, mental, and social well-being?

Answer:
Health
Question 2

What is a structural or functional disorder of the body called?

Answer:
Disease
Question 3

What term describes disease-causing germs?

Answer:
Pathogens
Question 4

Which category of diseases cannot spread from person to person?

Answer:
Non-communicable
Question 5

What is another name for metabolic diseases?

Answer:
Organic
Question 6

Which organ fails to produce enough insulin in diabetes?

Answer:
Pancreas
Question 7

Which hormone controls blood sugar levels?

Answer:
Insulin
Question 8

What is the obstruction of blood supply to heart muscles called?

Answer:
Heart attack
Question 9

Which filtering units in the kidney help remove nitrogenous waste?

Answer:
Nephrons
Question 10

What disease is caused by the accumulation of toxic wastes in the blood?

Answer:
Uraemia
Question 11

What are diseases that develop during embryonic development called?

Answer:
Genetic
Question 12

In which genetic disease does blood clot very slowly?

Answer:
Haemophilia
Question 13

Which disease involves defective haemoglobin in RBCs?

Answer:
Thalassemia
Question 14

What is an unpredictable reaction to a particular substance called?

Answer:
Allergy
Question 15

What is the substance that causes an allergic reaction called?

Answer:
Allergen
Question 16

What is a common respiratory allergic reaction?

Answer:
Asthma
Question 17

Which protein deficiency disease causes degeneration of muscles?

Answer:
Marasmus
Question 18

What is another common protein deficiency disease in children?

Answer:
Kwashiorkor
Question 19

What is the scientific name for Vitamin A?

Answer:
Retinol
Question 20

What is the deficiency disease of Vitamin A?

Answer:
Nightblindness
Question 21

What is the scientific name for Vitamin B1?

Answer:
Thiamine
Question 22

Which disease is caused by a lack of Vitamin B1?

Answer:
Beri-beri
Question 23

What is the scientific name for Vitamin B3?

Answer:
Niacin
Question 24

Which skin-related disease is caused by Vitamin B3 deficiency?

Answer:
Pellagra
Question 25

What is the scientific name for Vitamin C?

Answer:
Ascorbic acid
Question 26

Which disease is characterized by bleeding gums?

Answer:
Scurvy
Question 27

What is the scientific name for Vitamin D?

Answer:
Calciferol
Question 28

Which childhood disease results in soft bones due to lack of Vitamin D?

Answer:
Rickets
Question 29

Which mineral is essential for the formation of bones and teeth?

Answer:
Calcium
Question 30

Which mineral is required to form haemoglobin in RBCs?

Answer:
Iron
Question 31

What condition is caused by iron deficiency?

Answer:
Anaemia
Question 32

Which mineral controls thyroxine metabolism?

Answer:
Iodine
Question 33

What is the swelling in the neck due to iodine deficiency called?

Answer:
Goitre
Question 34

What is the term for becoming overweight due to excess calorie intake?

Answer:
Obesity
Question 35

What are agents that cause cancer called?

Answer:
Carcinogens
Question 36

What type of disease occurs due to old age and wear of organs?

Answer:
Degenerative
Question 37

Which eye disease causes the lens to turn opaque?

Answer:
Cataract
Question 38

What is the inflammation of joints called?

Answer:
Arthritis
Question 39

What is the hardening of arterial walls called?

Answer:
Arteriosclerosis
Question 40

What category of diseases spreads from an infected person to a healthy person?

Answer:
Communicable
Question 41

What is the most common infectious viral disease?

Answer:
Cold
Question 42

How do cold and influenza primarily spread?

Answer:
Droplets
Question 43

Which viral disease causes swelling of parotid glands?

Answer:
Mumps
Question 44

Which viral disease is marked by pustules all over the body?

Answer:
Smallpox
Question 45

Which disease causes paralysis of the limbs?

Answer:
Poliomyelitis
Question 46

What is another name for rabies?

Answer:
Hydrophobia
Question 47

Which organ does Jaundice primarily affect?

Answer:
Liver
Question 48

What does the acronym HIV stand for?

Answer:
Human Immunodeficiency Virus
Question 49

What does the acronym AIDS stand for?

Answer:
Acquired Immune Deficiency Syndrome
Question 50

Which bacterial disease primarily affects the lungs?

Answer:
Tuberculosis
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Long Answer Questions - Practice detailed answers to these comprehensive questions. Click "Show Answer" to reveal the response.
Question 1

Define 'Health' and list at least five features of a healthy human being.

Answer:
Health is defined as a state of complete physical, mental, and social well-being, and not merely an absence of disease or infirmity. A healthy human being generally exhibits the following features: 1. Clear skin. 2. Bright, clear eyes. 3. A body weight that is neither too fat nor too thin. 4. Fresh breath and a good appetite. 5. Sound sleep and regular activity of the bladder and bowels. 6. Coordinated body movements.
Question 2

Differentiate between communicable and non-communicable diseases.

Answer:
Non-communicable diseases are not caused by germs and cannot spread from one person to another (non-transmissible). They are often caused by improper functioning of body organs (e.g., diabetes, heart attack). Communicable or infectious diseases are caused by germs called pathogens (viruses, bacteria, fungi, protozoa). These diseases can spread from an infected person to a healthy person through agencies like air, water, food, insects (vectors), or physical contact.
Question 3

What are metabolic diseases? Explain with the example of Diabetes.

Answer:
Metabolic diseases, also known as organic diseases, are caused by the malfunctioning of various body organs. Diabetes mellitus is a prime example where the pancreas fails to produce sufficient insulin. Insulin is the hormone responsible for controlling blood sugar levels. When insulin is insufficient, sugar levels rise in the blood and sugar starts passing out in the urine.
Question 4

Explain the cause and symptoms of Uraemia.

Answer:
Uraemia is a metabolic disease caused by the malfunctioning of the kidneys. Normally, nephrons in the kidneys filter out harmful nitrogenous waste materials from the blood to be excreted as urine. If the kidneys fail to function properly, these toxic wastes accumulate in the blood, leading to the condition known as uraemia.
Question 5

What are genetic or congenital diseases? Describe Haemophilia and Thalassemia.

Answer:
Genetic or congenital diseases develop during embryonic development due to defects in genes or chromosomes inherited from parents. 1. Haemophilia: A condition where blood clotting occurs very slowly due to the absence of specific clotting factors, leading to excessive bleeding even from minor injuries. 2. Thalassemia: A disease characterized by defective haemoglobin in Red Blood Cells (RBCs). Children with this condition require frequent blood transfusions.
Question 6

Define Allergy and list common allergens and symptoms.

Answer:
An allergy is an unpredictable reaction of the body to a particular substance called an allergen. Common allergens include dust, spores, pollen, certain medicines, cosmetics, and specific types of clothing. Symptoms of allergic reactions can include asthma, eczema, diarrhoea, vomiting, nausea, and skin rashes. It primarily affects the skin, respiratory tract, and digestive tract.
Question 7

Compare the protein deficiency diseases Kwashiorkor and Marasmus.

Answer:
Both are dietary deficiency diseases caused by a lack of proteins. 1. Marasmus: Leads to severe degeneration of muscles and significant loss in body weight, making the child look extremely thin (skin and bones). 2. Kwashiorkor: Results from protein deficiency, often characterized by a swollen stomach (distended abdomen), thinning of limbs, and stunted growth.
Question 8

Provide a detailed account of Vitamin A deficiency.

Answer:
Vitamin A, also known as Retinol, is essential for the synthesis of visual purple in the retina and the growth of skin and hair. Its deficiency leads to: 1. Nightblindness (inability to see in dim light). 2. Drying of the cornea (Xerophthalmia). Rich sources of Vitamin A include carrots, yellow fruits, leafy vegetables, butter, fish, and milk.
Question 9

Explain the role of Vitamin B1 and the disease caused by its deficiency.

Answer:
Vitamin B1, or Thiamine, is vital for carbohydrate metabolism and the normal functioning of the central nervous system. Its deficiency causes Beri-beri, a disease that affects the nervous system and can lead to weakness and paralysis. Sources include whole grains, eggs, nuts, legumes, and yeast.
Question 10

What is Scurvy? Mention its cause, symptoms, and prevention.

Answer:
Scurvy is caused by a deficiency of Vitamin C (Ascorbic acid). Symptoms include swollen and bleeding gums and a decrease in the body's ability to heal wounds. Vitamin C is essential for developing immunity and maintaining the permeability of capillary walls. It can be prevented by consuming citrus fruits (lemons, oranges), tomatoes, and germinating seeds.
Question 11

Describe Rickets in children.

Answer:
Rickets is a deficiency disease caused by a lack of Vitamin D (Calciferol) or calcium. It affects growing children, causing their bones to remain soft and fail to harden. This often results in physical deformities like bow-legs. Vitamin D controls calcium and phosphorus metabolism. Sources include sunlight, egg yolk, fish liver oil, milk, and butter.
Question 12

Explain the importance of Iron in the diet and the consequences of its deficiency.

Answer:
Iron is a crucial mineral required for the formation of haemoglobin in Red Blood Cells, which carries oxygen throughout the body. Deficiency of iron leads to Anaemia, characterized by fatigue, paleness, and weakness. Sources of iron include green leafy vegetables, bananas, cereals, and egg yolks.
Question 13

What is Goitre? Explain its cause and clinical presentation.

Answer:
Goitre is a mineral deficiency disease caused by a lack of Iodine in the diet. Iodine is necessary for the thyroid gland to produce thyroxine, which controls metabolism and general growth. The most prominent symptom is a significant swelling in the neck region due to the enlargement of the thyroid gland. It can be prevented by using iodized table salt and eating seafood.
Question 14

Discuss the harmful effects of Obesity.

Answer:
Obesity occurs when a person consumes more calories (from proteins, carbohydrates, or fats) than the body requires, leading to excess energy being stored as fat. Obesity is harmful as it increases the risk of metabolic diseases like diabetes, heart problems (heart attack), and high blood pressure. It can be caused by overeating or a high intake of fast foods.
Question 15

What are neoplastic diseases? List some causative factors for cancer.

Answer:
Neoplastic diseases involve the uncontrolled growth of body cells, resulting in tumors or cancers. Factors that can cause cancer (carcinogens) include: 1. Smoking and tobacco chewing. 2. Use of addictive drugs. 3. Environmental pollution. 4. Exposure to radiation. 5. Certain viruses.
Question 16

Explain the concept of degenerative diseases with examples.

Answer:
Degenerative diseases occur with age due to the deterioration in the structure and functioning of body cells and organs. Examples include: 1. Cataract: The eye lens turns opaque, causing blindness. 2. Arthritis: Inflammation of the joints causing pain and stiffness. 3. Arteriosclerosis: Hardening of arterial walls, which reduces blood flow.
Question 17

How do infectious diseases spread through droplets? Give examples.

Answer:
Droplet infection occurs when an infected person sneezes or coughs, releasing fine moisture droplets containing pathogens into the air. These droplets can remain suspended for some time. A healthy person inhales these droplets and gets infected. Diseases spread this way include the common cold, influenza, tuberculosis, measles, and diphtheria.
Question 18

What is AIDS? How is it transmitted?

Answer:
AIDS (Acquired Immune Deficiency Syndrome) is caused by the HIV virus, which weakens the body's immune system. Transmission occurs through: 1. Sexual contact with an infected person. 2. Blood transfusion using infected blood. 3. Use of infected needles/syringes. 4. From an infected mother to her child during pregnancy or breastfeeding.
Question 19

Describe Tuberculosis (TB), its causative agent, and mode of spread.

Answer:
Tuberculosis is a bacterial disease that primarily affects the lungs, though it can affect other parts. It is caused by bacteria that spread through the sputum (saliva/mucus) of an infected person, often via droplets in the air when the patient coughs or sneezes.
Question 20

What are fungal diseases? Explain Ringworm and Athlete's foot.

Answer:
Fungal diseases are caused by moulds or fungi entering the body through the skin, mouth, or nose. 1. Ringworm: Affects the skin, hair, or nails, creating ring-shaped patches. It spreads via contaminated clothes or articles. 2. Athlete's foot: Specifically attacks the skin of the foot, especially between the toes.
Question 21

Explain the lifecycle and transmission of Malaria.

Answer:
Malaria is caused by a protozoan called Plasmodium. It is transmitted to humans through the bite of an infected female Anopheles mosquito (the vector). The mosquito picks up the germs while feeding on an infected person and transfers them into the bloodstream of a healthy person during a subsequent bite. Symptoms include chills and high fever.
Question 22

What is Amoebiasis? Mention its symptoms.

Answer:
Amoebiasis (amoebic dysentery) is caused by the protozoan Entamoeba histolytica, which attacks the large intestine. It is spread by consuming contaminated food or water. Symptoms include diarrhoea with gripping pain, discharge of mucus, and in severe cases, blood in the stool.
Question 23

Describe Elephantiasis and its mode of transmission.

Answer:
Elephantiasis is a disease caused by worms, characterized by extreme swelling of the legs, scrotum in males, and breasts in females. It is transmitted through the bite of an infected female Culex mosquito.
Question 24

Differentiate between 'vectors' and 'carriers' in the context of disease spread.

Answer:
Vectors are organisms, like mosquitoes or houseflies, that carry pathogens from a source of infection to a healthy host but do not suffer from the disease themselves. For example, female Anopheles mosquitoes carry Plasmodium. Pathogens can also be carried on the bodies of insects (like flies carrying germs from sewage to food).
Question 25

List five preventive measures for maintaining good health and preventing diseases.

Answer:
1. Balanced Diet: Eat healthy, seasonal fruits and vegetables to develop immunity. 2. Safe Drinking Water: Boil or filter water to avoid water-borne diseases. 3. Personal Hygiene: Wash hands with soap before meals and after using the toilet. 4. Clean Environment: Do not allow water to stagnate to prevent mosquito breeding. 5. Immunization: Get vaccinated on time to prevent infectious diseases.
Question 26

What is the difference between Public Hygiene and Personal Hygiene?

Answer:
Personal Hygiene involves taking care of one's own body (bathing, brushing teeth, washing hands). Public Hygiene involves community-level health practices such as proper disposal of sewage and domestic waste, chemical treatment of sewage before releasing it into water bodies, and keeping public surroundings clean to prevent the breeding of pests.
Question 27

Why is regular physical exercise and rest important for health?

Answer:
Physical exercise keeps muscles active, helps the heart and lungs function better, and improves blood circulation. Rest and sleep (6-8 hours daily for an adult) are essential for the body to recover and maintain normal health. Lack of rest can disturb sleep and lead to various ailments.
Question 28

Define 'First Aid' and list its importance.

Answer:
First aid is the immediate care given to a patient during an emergency or accident before professional medical help (a doctor) is available. It is crucial because it can prevent the condition from worsening, alleviate pain, and in many cases, save the victim's life during events like heart attacks, snake bites, or severe bleeding.
Question 29

What first aid should be given in case of severe bleeding?

Answer:
1. Raise the affected body part to minimize blood flow due to gravity. 2. Wash the cut surface with clean water. 3. Press the wound firmly with a piece of clean cotton wool or cloth to stop bleeding. 4. Apply a mild antiseptic if available.
Question 30

Explain the first aid procedures for different types of burns.

Answer:
1. Superficial Burns: Pour cold water over the area, dry it, and cover with a sterile dressing. 2. Deep Burns: Never use water; cover the injured part directly with a dry sterile dressing. 3. Chemical Burns: Wash with running water for at least 10 minutes to remove the chemical, then cover with a dressing. 4. General Rule: Do not pull away clothes stuck to the burn or prick blisters.
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Quick Review Flashcards - Click to flip and test your knowledge!
Question
According to the provided text, what is the definition of health?
Answer
Health is a state of complete physical, mental and social well-being, and not merely an absence of disease or infirmity.
Question
What is the definition of a disease?
Answer
A disease is a departure from normal health through structural or functional disorder of the body.
Question
What are the two major categories of diseases?
Answer
The two major categories are non-communicable diseases and communicable (or infectious) diseases.
Question
What is the defining characteristic of a non-communicable disease?
Answer
Such diseases cannot spread from one person to another (they are non-transmissible).
Question
What is the defining characteristic of a communicable or infectious disease?
Answer
These diseases are caused by germs called pathogens and can spread from an infected person to a healthy one.
Question
Diabetes and goitre are examples of what type of non-communicable disease?
Answer
Metabolic diseases, which are caused by the malfunctioning of various body organs.
Question
In the disease diabetes, which organ fails to produce sufficient insulin?
Answer
The pancreas.
Question
What condition results from the kidneys failing to filter out nitrogenous waste from the blood?
Answer
Uraemia.
Question
What are genetic or congenital diseases?
Answer
Diseases that develop at the time of embryonic development due to defects in genes or chromosomes inherited from parents.
Question
Which genetic disease is characterized by very slow blood clotting?
Answer
Haemophilia.
Question
What is thalassemia?
Answer
A genetic disease of defective haemoglobin in Red Blood Cells (RBCs).
Question
What is an unpredictable reaction to a particular substance called?
Answer
An allergy.
Question
A substance that causes an allergic reaction is known as a(n) _____.
Answer
allergen
Question
Beri-beri, scurvy, and goitre are examples of which category of non-communicable diseases?
Answer
Dietary deficiency diseases.
Question
Breast cancer and leukemia are examples of what type of non-communicable disease?
Answer
Cancer, a neoplastic disease.
Question
What are agents that cause cancer called?
Answer
Carcinogens.
Question
Arthritis and cataract are examples of _____ diseases, which are associated with ageing.
Answer
degenerative
Question
What is a cataract?
Answer
A degenerative disease where the eye lens turns opaque causing blindness.
Question
Sunburn and heat stroke are examples of diseases caused by what kind of agents?
Answer
Physical and chemical agents.
Question
Depression and schizophrenia are examples of what category of disease?
Answer
Mental illness.
Question
Tuberculosis (TB) is a disease usually of the lungs caused by what type of pathogen?
Answer
A bacterium.
Question
In the disease _____, the jaws get locked, and it is caused by germs entering through open wounds.
Answer
Tetanus
Question
Whooping cough (Pertussis) is a disease that spreads through a discharge from the throat of an infected person and is caused by what type of pathogen?
Answer
A bacterium.
Question
Cholera is an infection of the intestines caused by a bacterium. How does it primarily spread?
Answer
It spreads through contaminated food and water.
Question
Ringworm, a skin disease, is caused by what type of pathogen?
Answer
Fungi.
Question
Athlete's foot is a fungal infection that attacks the skin of the feet, particularly where?
Answer
Between the toes.
Question
What protozoan causes malaria?
Answer
Plasmodium.
Question
Which specific vector transmits the malaria parasite to humans?
Answer
The female Anopheles mosquito.
Question
Amoebiasis or amoebic dysentery is caused by the protozoan Entamoeba and is contracted by what means?
Answer
Consuming contaminated food.
Question
What are the main symptoms of elephantiasis?
Answer
Highly swollen legs, and a swollen scrotum in a male.
Question
Elephantiasis is spread by the bite of which mosquito?
Answer
The female Culex mosquito.
Question
Ascariasis is caused by a parasite living in the intestine that absorbs digested food. How do its eggs enter the body?
Answer
Through soil, unwashed fruits, and vegetables.
Question
How is Taeniasis, an infection caused by a tapeworm, contracted by humans?
Answer
By eating improperly cooked pork or beef.
Question
What are the two general methods by which communicable diseases spread?
Answer
The direct method and the indirect method.
Question
How do diseases like measles, chicken pox, and fungal infections spread via the direct method?
Answer
Through direct contact with an infected person.
Question
What is one example of an indirect method of disease transmission involving personal items?
Answer
Touching and sharing items used by the infected person, such as a towel or handkerchief.
Question
How is tuberculosis typically transmitted through the air?
Answer
Through fine droplets suspended in the air after an infected person sneezes or coughs.
Question
What is the term for organisms like houseflies and mosquitoes that carry germs from a source of infection but do not get the infection themselves?
Answer
Vectors or carriers.
Question
How do houseflies spread disease-causing germs?
Answer
They carry germs from garbage and sewage and deposit them on food.
Question
What is the primary way to prevent deficiency diseases?
Answer
Eating healthy and seasonal fruits and vegetables in proper quantities (a balanced diet).
Question
What is an important aspect of public hygiene mentioned in the text for preventing water-borne diseases?
Answer
Sewage should be chemically treated first before being released into water bodies.
Question
What simple personal hygiene practice can prevent pathogens from entering the mouth?
Answer
Washing hands properly before eating food.
Question
Why is nail biting considered a bad habit from a hygiene perspective?
Answer
Nails can harbor dirt and pathogens, which then go into the mouth.
Question
What is the immediate care given to a patient at the time of emergency before he or she is taken to a doctor called?
Answer
First aid.
Question
For superficial burns, what is the recommended first aid action?
Answer
Pour cold water over the burnt area and then cover that portion with a sterile dressing.
Question
In case of bleeding, what should be done to the affected body part to minimise the gravitational flow of blood?
Answer
The affected body part should be raised.
Question
What is the first aid procedure for a fracture?
Answer
Lay the victim comfortably, loosen clothes from the affected part, and do not move the fractured part.
Question
If someone falls unconscious, what is the immediate first aid step?
Answer
Immediately lay the person comfortably on the bed and loosen their clothes to let fresh air come into the room.
Question
In case of a suspected heart attack, what is the immediate first aid?
Answer
Immediately lay the person straight horizontally and allow fresh air to come in.
Question
What is the first aid for a person who has swallowed some poisonous substance?
Answer
Make the patient drink as much salt water as possible, and try to induce vomiting.
Question
Vaccines for typhoid and cholera are prepared using what method?
Answer
Using killed germs.
Question
Vaccines for measles and the freezed-dried BCG vaccine for tuberculosis are prepared using what kind of germs?
Answer
Living, weakened germs (attenuated pathogens).
Question
The vaccine for smallpox, now eradicated, used which living fully virulent virus?
Answer
The cowpox virus, which is very similar to the smallpox virus.
Question
What are toxoids, which are used as vaccines for diseases like diphtheria and tetanus?
Answer
Toxoids are extracts of toxins secreted by bacteria, made harmless by adding formalin.
Question
What is the definition of immunisation?
Answer
Immunisation is an artificial way of achieving protection from infections.
Question
What is passive smoking?
Answer
Inhaling smoke when sitting with active smokers.
Question
What are some of the harmful effects of consuming tobacco?
Answer
It increases the risk of lung cancer, heart attack, high blood pressure, cough, and irritation.
Question
How does excess alcohol damage the body?
Answer
It damages the liver, kidneys, and the stomach, and impairs judgement and self-control.
Question
What part of the body is primarily damaged by narcotic or psychotropic drugs like morphine and cocaine?
Answer
The nervous system and other organs of the body.
Question
The deficiency of which vitamin causes Beri-beri?
Answer
Thiamine (Vitamin B1).