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Q. No.Consider the two statements:
Assertion (A):
Insulin causes decreased blood glucose levels (hypoglycemia).
Reason (R):
Insulin acts mainly on hepatocytes and adipocytes (cells of adipose tissue), and enhances cellular glucose uptake and utilisation.
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: Pancreas: I | Pancreas: II | Pancreas |
87%
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Androgens:
1. Only I, II and III are correct
2. Only II, III and V are correct
3. Only III, IV and V are correct
4. I, II, III, IV and V are correct
| I: | regulate the development, maturation and functions of the male accessory sex organs. |
| II: | stimulate muscular growth, growth of facial and axillary hair, aggressiveness, low pitch of voice etc. |
| III: | play a major stimulatory role in the process of spermatogenesis (formation of spermatozoa). |
| IV: | act on the central neural system and influence the male sexual behaviour (libido). |
| V: | produce anabolic (synthetic) effects on protein and carbohydrate metabolism. |
2. Only II, III and V are correct
3. Only III, IV and V are correct
4. I, II, III, IV and V are correct
Subtopic: Gonadotropin & Gonadal Hormones |
91%
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How many of the given statements are correct:
| I: | Gastrin acts on the gastric glands and inhibits the secretion of hydrochloric acid and pepsinogen. |
| II: | Secretin acts on the endocrine pancreas and inhibits secretion of water and bicarbonate ions. |
| III: | CCK acts on both pancreas and gall bladder and inhibits the secretion of pancreatic enzymes and bile juice, respectively. |
| IV: | GIP inhibits gastric secretion and motility. |
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
Subtopic: Hormones of Heart, Kidney and Gastrointestinal Tract |
63%
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Subtopic: Mechanism of Hormone Action |
74%
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Hormones which interact with membrane-bound receptors:
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: | normally do not enter the target cell |
| II: | generate second messengers which in turn regulate cellular metabolism |
| III: | include steroid hormones and iodothyronines |
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
Subtopic: Mechanism of Hormone Action |
81%
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Aldosterone:
| 1. | acts mainly at the renal tubules and stimulates the excretion of Na+ and water and reabsorption of K+ and phosphate ions. |
| 2. | acts mainly at the renal tubules and stimulates the reabsorption of Na+ and water and excretion of K+ and phosphate ions. |
| 3. | acts mainly at the collecting duct and stimulates the excretion of Na+ and water and reabsorption of K+ and phosphate ions. |
| 4. | acts mainly at the collecting duct and stimulates the reabsorption of Na+ and water and excretion of K+ and phosphate ions. |
Subtopic: Adrenal Medulla | Adrenal Cortex: Aldosterone |
83%
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Which of the following produces anti-inflammatory reactions and suppresses the immune response?
| 1. | Thyroxine | 2. | Thymosin |
| 3. | Cortisol | 4. | Aldosterone |
Subtopic: Adrenal Cortex: Cortisol |
80%
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How many of the following will be the functions of adrenaline and noradrenaline?
| I: | increase in heart rate |
| II: | decrease in the strength of heart contraction |
| III: | increase in the rate of respiration |
| IV: | glycogenolysis |
| V: | breakdown of lipids and proteins |
| 1. | 2 | 2. | 3 |
| 3. | 4 | 4. | 5 |
Subtopic: Adrenal Medulla |
72%
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Addison’s disease is caused by:
1. Underproduction of hormones by the thyroid
2. Underproduction of hormones by the adrenal medulla
3. Underproduction of hormones by the adrenal cortex
4. Underproduction of hormones by the pituitary
1. Underproduction of hormones by the thyroid
2. Underproduction of hormones by the adrenal medulla
3. Underproduction of hormones by the adrenal cortex
4. Underproduction of hormones by the pituitary
Subtopic: Adrenal Cortex: Cortisol |
85%
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Consider the given two statements:
| Assertion (A): | The immune responses of old persons become weak. |
| Reason (R): | Thymus is degenerated in old individuals resulting in a decreased production of thymosins. |
| 1. | (A) is True but (R) is False. |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 4. | (A) is False but (R) is True. |
Subtopic: Thymus |
94%
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