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Q. No.Consider the given two statements:
Statement I:
A hypothalamic hormone called Gonadotrophin releasing hormone (GnRH) stimulates the synthesis and release of gonadotrophins by gonads.
Statement II:
Somatostatin from the hypothalamus stimulates the release of growth hormone from the pituitary.
1. Statement I is incorrect; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is correct; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Gonadotropin & Gonadal Hormones |
From NCERT
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Consider the given two statements:
1. Statement I is incorrect; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is correct; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | Releasing hormones and inhibitory hormones from the hypothalamus reach the pituitary gland through a portal circulatory system and regulate the functions of the posterior pituitary. |
| Statement II: | The anterior pituitary is under the direct neural regulation of the hypothalamus. |
2. Statement I is correct; Statement II is incorrect
3. Statement I is correct; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Adenohypophysis & Hypothalamus | Prolactin & Posterior Pituitary |
70%
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The pituitary gland
| I: | is divided anatomically into an adenohypophysis and a neurohypophysis. |
| II: | Adenohypophysis consists of two portions, pars distalis and pars intermedia. |
| 1. | Both I and II are correct |
| 2. | Both I and II are incorrect |
| 3. | I is correct, II is incorrect |
| 4. | I is incorrect, II is correct |
Subtopic: Adenohypophysis & Hypothalamus | Prolactin & Posterior Pituitary |
91%
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Identify the correct statements:
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
| I: | The pars distalis region of pituitary, commonly called anterior pituitary, produces GH, PRL, TSH, ACTH, LH and FSH. |
| II: | Pars intermedia secretes only one hormone called melanocyte stimulating hormone (MSH). |
| III: | In humans, the pars intermedia is almost merged with pars nervosa. |
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: Adenohypophysis & Hypothalamus | Human Growth Hormone | Prolactin & Posterior Pituitary |
73%
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Neurohypophysis (pars nervosa):
1. Both I and II are correct
2. Both I and II are incorrect
3. I is correct, II is incorrect
4. I is incorrect, II is correct
| I: | is also known as posterior pituitary. |
| II: | stores and releases two hormones called oxytocin and vasopressin. |
2. Both I and II are incorrect
3. I is correct, II is incorrect
4. I is incorrect, II is correct
Subtopic: Adenohypophysis & Hypothalamus | Prolactin & Posterior Pituitary |
96%
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Oxytocin and vasopressin:
1. Both I and II are correct
2. Both I and II are incorrect
3. I is correct, II is incorrect
4. I is incorrect, II is correct
| I: | are actually synthesised by the hypothalamus. |
| II: | are transported through a portal vein to neurohypophysis. |
2. Both I and II are incorrect
3. I is correct, II is incorrect
4. I is incorrect, II is correct
Subtopic: Prolactin & Posterior Pituitary |
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Over-secretion of GH:
1. Both I and II are correct
2. Both I and II are incorrect
3. I is correct, II is incorrect
4. I is incorrect, II is correct
| I: | in childhood leads to gigantism. |
| II: | in adults especially in middle age can result in severe disfigurement (especially of the face) called Acromegaly. |
2. Both I and II are incorrect
3. I is correct, II is incorrect
4. I is incorrect, II is correct
Subtopic: Adenohypophysis & Hypothalamus | Human Growth Hormone |
92%
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How many of the given statements are correct?
| I: | In males, LH stimulates the synthesis and secretion of hormones called androgens from testis. |
| II: | In males, FSH and androgens regulate spermatogenesis. |
| III: | In females, LH induces ovulation of fully mature follicles (graafian follicles) and maintains the corpus luteum, formed from the remnants of the graafian follicles after ovulation. |
| IV: | FSH stimulates growth and development of the ovarian follicles in females. |
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
Subtopic: Gonadotropin & Gonadal Hormones |
88%
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Oxytocin:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | in females, stimulates a vigorous contraction of uterus at the time of child birth. |
| II: | is a steroidal hormone. |
| III: | causes milk ejection from the mammary gland. |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Human Growth Hormone | Prolactin & Posterior Pituitary |
61%
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Consider the given two statements:
| Assertion (A): | An impairment affecting synthesis or release of ADH results in a diminished ability of the kidney to conserve water leading to water loss and dehydration. |
| Reason (R): | Vasopressin acts mainly at the kidney and stimulates resorption of water and electrolytes by the distal tubules. |
| 1. | (A) is True; (R) is False |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A) |
| 3. | Both (A) and (R) are True and (R) correctly explains (A) |
| 4. | (A) is False; (R) is True |
Subtopic: Adrenal Medulla | Adrenal Cortex: Aldosterone |
75%
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