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Q. No.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 |
85%
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Identify the incorrect statement regarding pancreas:
| 1. | It is a composite gland which acts as both exocrine and endocrine gland. |
| 2. | The endocrine pancreas consists of ‘Islets of Langerhans’. |
| 3. | There are about 1 to 2 million Islets of Langerhans in a normal human pancreas representing 90 percent of the pancreatic tissue. |
| 4. | It is an organ of the digestive system and endocrine system of vertebrates. |
Subtopic: Pancreas |
From NCERT
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Regarding the two main types of cells in the Islet of Langerhans of pancreas:
1. Only A is correct
2. Only B is correct
3. Both A and B are correct
4. Both A and B are incorrect
| A: | The α-cells secrete a hypoglycaemic hormone called glucagon. |
| B: | The β-cells secrete a hyperglycaemic hormone called insulin. |
2. Only B is correct
3. Both A and B are correct
4. Both A and B are incorrect
Subtopic: Pancreas: I | Pancreas: II | Pancreas |
85%
From NCERT
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Consider the two statements:
| Assertion (A): | Diabetes mellitus is associated with loss of glucose through urine and formation of harmful compounds known as ketone bodies. |
| Reason (R): | Insulin stimulates conversion of glucose to glycogen (glycogenesis) in the target cells. |
| 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: Pancreas: I | Pancreas: II | Pancreas |
80%
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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 |
92%
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: | The estrogen is synthesised and secreted mainly by the growing ovarian follicles. |
| Statement II: | After ovulation, the ruptured follicle is converted to a structure called corpus luteum, which secretes mainly progesterone. |
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 |
93%
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: | Estrogens stimulate growth and activities of female secondary sex organs, development of growing ovarian follicles, and appearance of female secondary sex characters. |
| Statement II: | Progesterone supports pregnancy. |
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 | Summary |
From NCERT
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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 |
65%
From NCERT
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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: | Binding of a hormone to its receptor leads to the formation of a hormone-receptor complex. |
| II: | Each receptor is specific to one hormone only and hence receptors are specific. |
| III: | Hormone-Receptor complex formation leads to certain biochemical changes in the target tissue. |
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: Mechanism of Hormone Action |
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From NCERT
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Hormones which interact with intracellular receptors:
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: | include steroid hormones and iodothyronines. |
| II: | mostly regulate gene expression or chromosome function by the interaction of hormone-receptor complex with the genome. |
2. Both I and II are incorrect
3. I is correct, II is incorrect
4. I is incorrect, II is correct
Subtopic: Mechanism of Hormone Action |
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