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Q. No.Comprehend the given statements and select the correct option.
(a) Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold is an example of negative feedback loop in humans.
(b) Epinephrine and cortisone both act as hormones as well as neurotransmitters.
(c) Bowman’s gland are found in olfactory epithelium.
1. (a) and (c) are correct while (b) is incorrect
2. (a) and (b) are correct while (c) is incorrect
3. (b) and (c) are correct while (a) is incorrect
4. (a), (b) and (c) are correct
Subtopic: Adrenal Medulla |
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Read the given statements and select the option that contains correct statements only
(a) Ecdysone is a steroid hormone that controls moulting in insects
(b) Artificial light, reduced sleep time disrupt the activity of pineal gland
(c) Fall in active vitamin-D levels directly stimulate the receptors present on cells of parathyroid gland to release parathormone
(d) The amino acid tryptophan is the precursor for the synthesis of melatonin and thyroxine
1. a and b
2. b and c
3. a and d
4. c and d
(a) Ecdysone is a steroid hormone that controls moulting in insects
(b) Artificial light, reduced sleep time disrupt the activity of pineal gland
(c) Fall in active vitamin-D levels directly stimulate the receptors present on cells of parathyroid gland to release parathormone
(d) The amino acid tryptophan is the precursor for the synthesis of melatonin and thyroxine
1. a and b
2. b and c
3. a and d
4. c and d
Subtopic: Pineal Gland |
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The pineal gland is located on the dorsal side of the forebrain. It secretes a hormone that plays a role in the regulation of:
(a) Metabolism
(b) Menstrual cycle
(c) Pigmentation
(d) Swallowing
(e) Hunger
Choose the correct option.
(a) Metabolism
(b) Menstrual cycle
(c) Pigmentation
(d) Swallowing
(e) Hunger
Choose the correct option.
| 1. | a, b, and c | 2. | b, c, and e |
| 3. | a, b, and d | 4. | c, d, and e |
Subtopic: Pineal Gland |
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Assertion (A): GnRH stimulates release of FSH and LH.
Reason (R): The hypothalamus is called master of master endocrine glands.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): The hypothalamus is called master of master endocrine glands.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Adenohypophysis & Hypothalamus |
76%
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Assertion (A): Our body secretes adrenaline in intense cold.
Reason (R): Adrenaline raises metabolic rate.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Adrenaline raises metabolic rate.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Adrenal Medulla |
65%
From NCERT
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Assertion (A): Adrenaline is an emergency hormone and is always available.
Reason (R): During emergency it is released efficiently.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): During emergency it is released efficiently.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Adrenal Medulla |
68%
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Assertion (A): Decreases secretion of growth hormone and is always available.
Reason (R): Deficiency of iodine results in the deficiency of thyroxine.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Deficiency of iodine results in the deficiency of thyroxine.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Adenohypophysis & Hypothalamus | Thyroid Gland Part I |
75%
From NCERT
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Assertion (A): Insulin is water soluble hormone.
Reason (R): Insulin is an example of proteinaceous hormones.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Insulin is an example of proteinaceous hormones.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Pancreas |
56%
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Assertion (A): CRH stimulates ACTH.
Reason (R): ACTH controls secretion of glucocorticoids.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): ACTH controls secretion of glucocorticoids.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Adrenal Cortex: Cortisol |
65%
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Assertion (A): The over secretion of growth hormone (GH) before puberty causes acromegaly.
Reason (R): The over secretion of GH after puberty causes gigantism.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): The over secretion of GH after puberty causes gigantism.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Adenohypophysis & Hypothalamus | Human Growth Hormone |
77%
From NCERT
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