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Q. No.The thyroid gland:
I:
is composed of two lobes interconnected with a thin flap of connective tissue called isthmus.
II:
is composed of follicles and stromal tissues.
III:
is located in the mediastinum, ventral to aorta.
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: Thyroid Gland Part I | Thyroid Gland Part II |
74%
From NCERT
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Consider the given 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: | Thyroid follicular cells synthesise three hormones: thyroxine, triiodothyronine and thyrocalcitonin. |
| Statement II: | Iodine is essential for the normal rate of hormone synthesis in the thyroid. |
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: Thyroid Gland Part I |
From NCERT
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Exophthalmic goitre is a form of:
1. Hyperparathyroidism
2. Hyperthyroidism
3. Hypercortisolism
4. Hyperadrenalism
1. Hyperparathyroidism
2. Hyperthyroidism
3. Hypercortisolism
4. Hyperadrenalism
Subtopic: Thyroid Gland Part I | Thyroid Gland Part II |
From NCERT
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How many of the given statements are correct:
| I: | Thyroid hormones play an important role in the regulation of the basal metabolic rate. |
| II: | Thyroid hormones are most important factors that affect the process of red blood cell formation. |
| III: | Thyroid hormones control the metabolism of carbohydrates but not of proteins and fats. |
| IV: | Maintenance of water and electrolyte balance is also influenced by thyroid hormones. |
| 1. | 1 | 2. | 2 |
| 3. | 3 | 4. | 4 |
Subtopic: Thyroid Gland Part I | Thyroid Gland Part II |
From NCERT
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In humans:
| 1. | four parathyroid glands are present on the back side of the thyroid gland, one pair each in the two lobes of the thyroid gland. |
| 2. | four parathyroid glands are present on the front side of the thyroid gland, one pair each in the two lobes of the thyroid gland. |
| 3. | two parathyroid glands are present on the back side of the thyroid gland, one each in the two lobes of the thyroid gland. |
| 4. | two parathyroid glands are present on the front side of the thyroid gland, one each in the two lobes of the thyroid gland. |
Subtopic: Parathyroid |
85%
From NCERT
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PTH is a hypercalcemic hormone. Which of the following statements will explain this function of PTH?
| I: | PTH acts on bones and stimulates the process of bone resorption (dissolution/demineralisation). |
| II: | PTH stimulates reabsorption of Ca2+ by the renal tubules |
| III: | PTH increases Ca2+ absorption from the digested food |
| 1. | Only I and II | 2. | Only I and III |
| 3. | Only II and III | 4. | I, II and III |
Subtopic: Parathyroid |
87%
From NCERT
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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 |
95%
From NCERT
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Adrenaline and noradrenaline are commonly called as:
| 1. | Sterols | 2. | Catecholamines |
| 3. | Hopanoids | 4. | Terpenes |
Subtopic: Adrenal Medulla |
96%
From NCERT
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Consider the two statements:
| Assertion(A): | Adrenaline and noradrenaline are called emergency hormones or hormones of Fight or Flight. |
| Reason(R): | Adrenaline and noradrenaline are monoamine neurotransmitters. |
| 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: Adenohypophysis & Hypothalamus | Adrenal Medulla |
52%
From NCERT
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Adrenaline and noradrenaline:
I: increase alertness
II: dilate pupil
III: cause piloerection (raising of hairs)
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: increase alertness
II: dilate pupil
III: cause piloerection (raising of hairs)
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: Adrenal Medulla |
From NCERT
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