ENDOCRINE SYSTEM AND ADOLESCENCE - Q&A
Multiple Choice Questions :1. Put a tick mark (✓) against the correct alternative in the following statements :
(a) Cortisone hormone is secreted by :
(i) Medulla of adrenal (ii) Cortex of adrenal
(iii) Pancreas (iv) Thyroid
Answer: (ii) Cortex of adrenal
Explanation: The adrenal glands have two parts. The outer part, called the cortex, secretes cortisone, while the inner part, the medulla, secretes adrenaline.
(b) Which one of the following hormones stimulates the breakdown of glycogen in the liver into glucose :
(i) Insulin (ii) Adrenaline
(iii) Glucagon (iv) Thyroxine
Answer: (iii) Glucagon
Explanation: Glucagon is secreted by the pancreas. Its function is to stimulate the breakdown of glycogen stored in the liver back into glucose to raise blood sugar levels.
(c) Which one of the following hormones converts excess of glucose into glycogen :
(i) Glucagon (ii) Thyroxine
(iii) Insulin (iv) Adrenaline
Answer: (iii) Insulin
Explanation: Insulin, secreted by the pancreas, lowers blood glucose levels by converting extra glucose into glycogen to be stored in the liver and muscles.
(d) Which one of the following glands is also called master gland :
(i) Pituitary gland (ii) Adrenal gland
(iii) Thyroid gland (iv) Ovary
Answer: (i) Pituitary gland
Explanation: The pituitary gland is located below the brain and secretes hormones that regulate the activity of other endocrine glands, earning it the title "master gland".
(e) The emergency hormone to face the danger or to fight is secreted by :
(i) Islets of Langerhans (ii) Adrenal cortex
(iii) Pituitary (iv) Adrenal medulla
Answer: (iv) Adrenal medulla
Explanation: The adrenal medulla secretes Adrenaline, which is known as the "fight or flight" hormone because it prepares the body for emergency situations.
1. What is a hormone ?
Answer: Hormone is a chemical substance secreted from an endocrine gland, which is directly poured into the blood stream and acts on a target organ or cells to perform specific functions.
2. Which one of the following endocrine glands produces its hormone in large quantities as a result of emotional stimulation ?
(a) Thyroid (b) Islets of Langerhans
(c) Adrenal medulla (d) Adrenal cortex
Answer: (c) Adrenal medulla
Explanation: The adrenal medulla secretes adrenaline when a person is under severe stress, anger, or emotional stimulation to prepare the body to face the situation.
3. In table given below, fill in the blanks by naming endocrine glands, the hormones they secrete, and the function they perform in a normal person.
| S. No | Name of the gland | Hormone produced | Function |
|---|---|---|---|
| 1. | Thyroid | Thyroxine | Controls the metabolic rate |
| 2. | Pancreas | Insulin | Regulates (lowers) the amount of sugar in the blood |
| 3. | Adrenal (Medulla) | Adrenaline | Prepares the body for action |
| 4. | Pituitary | Growth hormone | Speeds up growth |
4. In humans, increased thyroxine production results in (tick the correct answer) :
(a) Increased metabolism (b) Decreased metabolism
(c) Dwarfism (d) Cretinism
Answer: (a) Increased metabolism
Explanation: Thyroxine regulates the body's metabolic rate. Oversecretion leads to an increased metabolic rate, increased heart beat, and restlessness.
5. Match the items in Column A with those in Column B.
| Column A | Column B (Correct Match) |
|---|---|
| (a) Cretinism | (ii) Defective development of child |
| (b) Diabetes mellitus | (v) Insufficient insulin in blood |
| (c) Increased metabolic rate | (iii) Oversecretion of thyroxine |
| (d) Simple goitre | (iv) Insufficient iodine in food |
| (e) Growth hormone | (i) Pituitary gland |
6. Name the source and the function of each of the following hormones :
| Hormone | Source | Function | |
|---|---|---|---|
| (a) | Glucagon | Pancreas (Islets of Langerhans) | Stimulates the breakdown of glycogen in the liver to glucose (raises blood sugar). |
| (b) | Thyroxine | Thyroid Gland | Controls the metabolic rate and stimulates growth in infants. |
| (c) | Adrenaline | Adrenal Medulla | Prepares body for emergency (fight or flight) by increasing heart beat and energy. |
| (d) | Insulin | Pancreas (Islets of Langerhans) | Lowers blood glucose by converting extra glucose to glycogen. |
| (e) | Cortisone | Adrenal Cortex | Influences carbohydrate, fat, and protein metabolism. |
7. What is the difference between an exocrine gland and an endocrine gland ?
Answer:
1. Exocrine glands have ducts. They send their secretions (like saliva) through these ducts directly to the target organs (e.g., Salivary glands).
2. Endocrine glands are ductless glands. They pour their secretions (hormones) directly into the blood stream, which then carries them to the target organs (e.g., Thyroid gland).
8. Why pituitary gland is called "master gland" ?
Answer: The pituitary gland is called the "master gland" because it secretes several hormones that regulate and control the activity of other endocrine glands in the body.
9. Briefly write about the importance of physical hygiene during adolescence.
Answer: During adolescence, the increased activity of sweat glands and sebaceous (oil) glands can lead to body odour, acne, and pimples. Therefore, personal hygiene is very important to maintain health. Adolescents should bathe regularly to keep the skin clean and avoid infections. Girls specifically need to maintain hygiene during menstruation to avoid infections.
10. Briefly discuss the ways and means which can be practiced to overcome stress.
Answer: Stress management is essential for well-being. Ways to overcome stress include:
1. Yoga: Combines physical poses and breathing to reduce stress.
2. Exercise: Activities like running or playing sports (30-45 mins) improve health and reduce stress.
3. Proper sleep schedule: Helps in reducing stress.
4. Reading and Hobbies: Reading or practicing hobbies like music or painting calms the mind.
5. Positive Thinking: Being a positive thinker helps in interactions.
6. Deep breathing and Meditation: Invokes relaxation.
7. Time Management: Getting organized helps plan work better and reduces pressure.
Question 1What is the primary difference between exocrine and endocrine glands?
Question 2Where are hormones poured immediately after being secreted by endocrine glands?
Question 3Which gland is specifically mentioned as being situated on either side of the windpipe?
Question 4The hormone thyroxine is characterized as containing which specific element?
Question 5Which ailment is caused by the enlargement of the thyroid gland due to insufficient iodine?
Question 6What is the result of 'cretinism' in a child?
Question 7Which condition in adults is marked by general sluggishness and swelling on the face and hands?
Question 8Where are the adrenal glands located in the human body?
Question 9Which part of the adrenal gland secretes the 'emergency hormone' adrenaline?
Question 10Why is adrenaline often called the 'fight or flight' hormone?
Question 11Which hormone is the most well-known secretion of the adrenal cortex?
Question 12The pancreas contains clusters of hormone-secreting cells known as:
Question 13What is the primary function of insulin in the human body?
Question 14Insufficient secretion of insulin leads to which medical condition?
Question 15Which hormone acts oppositely to insulin by raising the sugar level in the blood?
Question 16Which gland is referred to as the 'master gland'?
Question 17What occurs when there is an excess secretion of growth hormone during adolescent years?
Question 18Which hormone produced by the pituitary stimulates the thyroid gland?
Question 19What is the definition of 'adolescence' as per the text?
Question 20The term 'adolescence' is derived from a Latin word meaning what?
Question 21What is the 'Adam's apple' found in adolescent boys?
Question 22Increased activity of which glands leads to acne and pimples during adolescence?
Question 23What are the male sex hormones collectively called?
Question 24Which process is characterized by the periodic breakdown of the lining of the uterus in females?
Question 25According to the text, what is the scientific cause of depression and mood swings during adolescence?
Question 26Which stage follows adolescence, where an individual attains full physical growth and emotional stability?
Question 27How does exercise help in stress management?
Question 28Which practice combines physical poses, controlled breathing, and meditation to reduce stress?
Question 29What is the typical interval for regular menstrual periods?
Question 30Which hormone converts extra glucose into glycogen for storage in the liver?
Question 31Which gland helps regulate the salt and water balance in the body through its cortical hormones?
Question 32What is the primary role of FSH (Gonad-stimulating hormone) from the pituitary?
Question 33Which of these is a symptom of a diabetic person?
Question 34During an emergency, adrenaline increases which of the following?
Question 35What is 'puberty'?
Question 36Why is the use of iodised salt recommended?
Question 37Which hormone is responsible for the contraction of uterus muscles during childbirth?
Question 38What is defined as 'what you feel when you have to handle more than you are used to'?
Question 39Which of these is NOT a suggested way to manage stress in the text?
Question 40Secondary sexual characteristics in girls include which of the following?
Question 41What is the location of the pituitary gland?
Question 42Which hormone stimulates the breakdown of glycogen into glucose?
Question 43What does thyroxine do to the body's activities?
Question 44Which gland is both a digestive gland and an endocrine gland?
Question 45A 'wet dream' refers to the spontaneous discharge of what?
Question 46What is the main androgen (male sex hormone)?
Question 47During adolescence, which gender initially grows faster in height?
Question 48Which of the following is a result of insufficient growth hormone?
Question 49What physical change is common to both boys and girls during adolescence?
Question 50Hormones are described as being secreted in what quantity?
Statement 1The human body has two main types of glands: exocrine and endocrine.
Statement 2Exocrine glands are called ductless glands.
Statement 3Endocrine glands send their secretions through ducts directly to target organs.
Statement 4The secretions of endocrine glands are called hormones.
Statement 5Hormones are poured directly into the blood stream.
Statement 6Hormones are produced in very large quantities by the glands.
Statement 7The thyroid gland is situated on either side of the windpipe.
Statement 8Thyroxine is an iodine-containing protein.
Statement 9Thyroxine hormone slows down the rate of body activities.
Statement 10Insufficient secretion of thyroxine causes simple goitre.
Statement 11Simple goitre appears as a swelling in the neck.
Statement 12Cretinism is a condition caused by thyroid deficiency in adults.
Statement 13Myxoedema is a condition seen in children with thyroid deficiency.
Statement 14Iodised salt is recommended to ensure the production of thyroxine.
Statement 15Oversecretion of thyroxine leads to an increased heart beat.
Statement 16The adrenal glands are located like caps over the kidneys.
Statement 17The adrenal medulla is the peripheral part of the adrenal gland.
Statement 18The adrenal medulla secretes adrenaline.
Statement 19Adrenaline is also known as the 'emergency hormone'.
Statement 20Adrenaline is called the 'fight or flight' hormone.
Statement 21Adrenaline decreases the rate of respiration.
Statement 22Adrenaline causes the liver to release more glucose into the blood.
Statement 23The adrenal cortex secretes the hormone cortisone.
Statement 24Cortical hormones regulate salt and water balance in the body.
Statement 25The pancreas is situated behind the stomach.
Statement 26The endocrine part of the pancreas is called the Islets of Langerhans.
Statement 27The pancreas secretes the hormones insulin and glucagon.
Statement 28Insulin raises the glucose level in the blood stream.
Statement 29Insulin converts extra glucose into glycogen for storage.
Statement 30Insufficient secretion of insulin causes diabetes mellitus.
Statement 31A diabetic person usually gains weight and becomes very strong.
Statement 32Glucagon stimulates the breakdown of glycogen into glucose.
Statement 33The pituitary gland is located below the brain.
Statement 34The pituitary gland is called the 'master gland'.
Statement 35Insufficient growth hormone in childhood causes gigantism.
Statement 36TSH stimulates the thyroid gland to secrete thyroxine.
Statement 37The pituitary gland plays no role in the birth process.
Statement 38The pituitary gland secretes FSH, which stimulates the gonads.
Statement 39Growth begins only when a person reaches adolescence.
Statement 40Adolescence is the stage between childhood and adulthood.
Statement 41The term 'adolescence' is derived from a Latin word meaning 'to grow into maturity'.
Statement 42An adolescent is considered a fully grown adult.
Statement 43Growth during adolescence is primarily controlled by hormones.
Statement 44A sudden increase in height is a visible change during adolescence.
Statement 45Initially, boys grow faster than girls during adolescence.
Statement 46The larynx is also known as the voice box.
Statement 47Boys develop a high-pitched voice during adolescence.
Statement 48The 'Adam's apple' is a protruding part of the throat in boys.
Statement 49The secretion of sweat and sebaceous glands increases during adolescence.
Statement 50Sebaceous glands are also known as oil glands.
Question 1The human body has two types of glands: the exocrine glands and the ______ glands.
Question 2The exocrine glands send their secretions through ______ directly to the target organs.
Question 3Endocrine glands are also known as ______ glands because they pour secretions directly into the blood.
Question 4The chemical substances secreted by endocrine glands are called ______.
Question 5A ______ is a chemical substance that acts on a specific target organ or cells.
Question 6The ______ gland is a bilobed gland situated on either side of the windpipe.
Question 7Thyroid gland is located just below the ______.
Question 8The thyroid gland secretes the hormone ______.
Question 9Thyroxine is a protein that contains the element ______.
Question 10The hormone thyroxine speeds up the rate of most ______ activities of the body.
Question 11Insufficient secretion of thyroxine can cause an ailment called simple ______.
Question 12Simple goitre appears as a ______ in the neck.
Question 13Goitre occurs due to insufficient ______ in our daily food.
Question 14The ailment caused by thyroid deficiency in children, leading to physical and mental retardation, is ______.
Question 15The use of ______ salt is recommended to prevent thyroid deficiencies.
Question 16In adults, insufficient thyroxine production leads to a condition called ______.
Question 17Myxoedema is characterized by general ______ and swelling on the face and hands.
Question 18Oversecretion of thyroxine causes an increased ______ rate and heart beat.
Question 19The ______ glands are located like caps over the two kidneys.
Question 20Each adrenal gland consists of a central ______ and a peripheral cortex.
Question 21The adrenal medulla secretes ______.
Question 22Adrenaline is often referred to as the ______ hormone.
Question 23Adrenaline prepares the body for a '______ or flight' response.
Question 24Adrenaline increases the rate of ______ and heart beat.
Question 25Adrenaline causes the liver to release more ______ into the blood for extra energy.
Question 26The adrenal cortex secretes many hormones, the most well-known being ______.
Question 27Cortical hormones regulate the ______ and water balance in the body.
Question 28The ______ is a gland situated behind the stomach.
Question 29The hormone-secreting cells in the pancreas are called ______.
Question 30The pancreas secretes two main hormones: insulin and ______.
Question 31The hormone ______ lowers the glucose level in the blood stream.
Question 32Insulin converts extra glucose into ______ to be stored in the liver.
Question 33Insufficient secretion of insulin causes ______ mellitus.
Question 34A diabetic person excretes a great deal of ______ loaded with sugar.
Question 35Oversecretion of insulin can cause the glucose level to become dangerously ______.
Question 36The hormone ______ stimulates the breakdown of glycogen into glucose.
Question 37The ______ gland is a pea-sized gland located below the brain.
Question 38The pituitary gland is also called the ______ gland.
Question 39The ______ hormone (GH) regulates growth, especially during adolescent years.
Question 40Insufficient growth hormone causes ______.
Question 41Excess secretion of growth hormone results in ______.
Question 42Thyroid-stimulating hormone (TSH) stimulates the thyroid to secrete ______.
Question 43The pituitary secretes FSH, which stands for ______-stimulating hormone.
Question 44FSH stimulates the ______ to secrete sex hormones.
Question 45The pituitary gland produces hormones that cause ______ of the uterus during childbirth.
Question 46A pituitary hormone stimulates the breasts to produce ______ for breastfeeding.
Question 47The period of life leading to reproductive maturity is called ______.
Question 48The word adolescence is derived from the Latin word ______, meaning to grow into maturity.
Question 49Adolescence is a transitional stage between ______ and adulthood.
Question 50During adolescence, height increases because the ______ of the arms and legs elongate.
Question 1
What are the two main types of glands in the human body?
Question 2
Which type of gland sends secretions through ducts?
Question 3
What is another name for endocrine glands?
Question 4
What are the secretions of endocrine glands called?
Question 5
How do hormones reach their target organs?
Question 6
Which gland is shaped like a butterfly and located in the neck?
Question 7
Where is the thyroid gland situated relative to the windpipe?
Question 8
What iodine-containing hormone does the thyroid secrete?
Question 9
Which element is essential for the production of thyroxine?
Question 10
What is the primary function of thyroxine?
Question 11
What ailment is caused by an enlarged thyroid due to lack of iodine?
Question 12
What condition causes physical and mental retardation in children?
Question 13
What is the adult condition caused by thyroid deficiency?
Question 14
What symptom is characteristic of myxoedema?
Question 15
What does oversecretion of thyroxine lead to?
Question 16
Where are the adrenal glands located?
Question 17
What are the two parts of the adrenal gland?
Question 18
Which hormone is known as the 'emergency hormone'?
Question 19
Which part of the adrenal gland secretes adrenaline?
Question 20
What is adrenaline also called based on its response type?
Question 21
Which hormone increases heart beat and blood pressure?
Question 22
What is the well-known hormone secreted by the adrenal cortex?
Question 23
What balance do cortical hormones regulate in the body?
Question 24
Where is the pancreas situated?
Question 25
What are the hormone-secreting cells in the pancreas called?
Question 26
Which pancreatic hormone lowers blood glucose levels?
Question 27
Into what does insulin convert extra glucose?
Question 28
Where is glycogen stored in the body?
Question 29
What disease is caused by insufficient insulin secretion?
Question 30
Which hormone stimulates the breakdown of glycogen to glucose?
Question 31
Which gland is located below the brain and is pea-sized?
Question 32
What is the common nickname for the pituitary gland?
Question 33
What does Growth Hormone (GH) regulate?
Question 34
What does insufficient growth hormone lead to?
Question 35
What does excess growth hormone lead to?
Question 36
Which pituitary hormone stimulates the thyroid gland?
Question 37
What is the function of FSH?
Question 38
Which gland plays an important role in the birth process?
Question 39
What is the transitional stage between childhood and adulthood?
Question 40
From which Latin word is 'adolescence' derived?
Question 41
What does the Latin word 'adolescant' mean?
Question 42
At what age range does adolescence typically begin?
Question 43
What is the most visible physical change during adolescence?
Question 44
Who initially grows faster during adolescence?
Question 45
What is the protruding part of the throat in boys called?
Question 46
What kind of voice do girls generally develop?
Question 47
What causes acne and pimples during adolescence?
Question 48
What is the stage of reaching reproductive maturity called?
Question 49
What are the male sex hormones called collectively?
Question 50
What is the primary male sex hormone?
Question 1
Distinguish between exocrine and endocrine glands with examples and diagrams.
Question 2
Define a hormone and list its general characteristics as described in the text.
Question 3
Describe the location and secretion of the thyroid gland.
Question 4
What are the effects of insufficient secretion of thyroxine in children and adults?
Question 5
Explain why the adrenal glands are essential for 'Fight or Flight' situations.
Question 6
Describe the dual role of the pancreas as a gland.
Question 7
How does insulin regulate blood glucose levels in the human body?
Question 8
Explain why the pituitary gland is referred to as the 'Master Gland'.
Question 9
List the major hormones produced by the pituitary gland and their specific functions.
Question 10
Define adolescence and explain its significance in human development.
Question 11
What are the primary physical changes that occur in boys during adolescence?
Question 12
What are the primary physical changes that occur in girls during adolescence?
Question 13
Describe the role of sweat and sebaceous glands during adolescence.
Question 14
Define puberty and identify the hormones responsible for it in both sexes.
Question 15
What are 'Secondary Sexual Characteristics'? Provide examples for males and females.
Question 16
Explain the process and significance of menstruation in females.
Question 17
Discuss the emotional and psychological changes associated with adolescence.
Question 18
Why is personal hygiene particularly important during adolescence?
Question 19
What is 'stress' and how does the body react to it physiologically?
Question 20
Detail five effective ways to manage stress as mentioned in the text.
Question 21
What is the difference between simple goitre and cretinism?
Question 22
Describe the location and components of the adrenal glands.
Question 23
How does the adrenal cortex help the body adapt to stress?
Question 24
Contrast the functions of insulin and glucagon.
Question 25
What are the symptoms of Diabetes Mellitus?
Question 26
What is the Adam's apple and why is it more prominent in boys?
Question 27
Identify the gland responsible for the following: (a) Emergency response, (b) Master control, (c) Metabolic rate, (d) Blood sugar.
Question 28
Describe the physical state of 'Adulthood' as the stage following adolescence.
Question 29
How do hormones affect the brain during adolescence?
Question 30
Why is it important for adolescents to be careful about peer group influence?