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Q. No.The increase in osmolarity from outer to inner medullary interstitium is maintained due to:
(i)
Close proximity between Henle's loop and vasa recta
(ii)
Counter current mechanism
(iii)
Selective secretion of HCO3¯ and hydrogen ions in PCT
(iv)
Higher blood pressure in glomerular capillaries
1.
Only (ii)
2.
(iii) and (iv)
3.
(i), (ii) and (iii)
4.
(i) and (ii)
Subtopic: Concentration of Urine: I |
63%
Level 2: 60%+
NEET - 2020
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Select the correct statement:
| 1. | Atrial Natriuretic Factor increases the blood pressure. |
| 2. | Angiotensin II is a powerful vasodilator. |
| 3. | Counter current pattern of blood flow is not observed in vasa recta. |
| 4. | Reduction in Glomerular Filtration Rate activates JG cells to release renin. |
Subtopic: Autoregulation of GFR |
82%
Level 1: 80%+
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Which of the following would help in prevention of diuresis?
| 1. | Reabsorption of Na+ and water from renal tubules due to aldosterone |
| 2. | Atrial natriuretic factor causes vasoconstriction |
| 3. | Decrease in the secretion of renin by JG cells |
| 4. | More water reabsorption due to under secretion of ADH |
Subtopic: Autoregulation of GFR |
59%
Level 3: 35%-60%
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Presence of which of the following conditions in urine is indicative of Diabetes mellitus:
1. Uremia and Renal Calculi
2. Ketonuria and Glycosuria
3. Renal Calculi and Hyperglycaemia
4. Uremia and Ketonuria
Subtopic: Micturition Reflex |
87%
Level 1: 80%+
NEET - 2020
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Nitrogenous waste is excreted in the form of pellet or paste by:
| 1. | Pavo | 2. | Ornithorhynchus |
| 3. | Salamandra | 4. | Hippocampus |
Subtopic: Nitrogenous Excretory Products |
77%
Level 2: 60%+
NEET - 2022
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Which one of the following hormones reduces blood pressure?
1. Antidiuretic hormone
2. Atrial Natriuretic factor
3. Aldosterone
4. Angiotensin-II
Subtopic: Autoregulation of GFR |
85%
Level 1: 80%+
NEET - 2022
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Terrestrial adaptations necessitated the production of :
| 1. | Highly toxic nitrogenous wastes like urea and uric acid |
| 2. | Lesser toxic nitrogenous wastes like urea and uric acid |
| 3. | Lesser toxic nitrogenous wastes like ammonia and urea |
| 4. | Highly toxic nitrogenous wastes like ammonia and urea |
Subtopic: Nitrogenous Excretory Products |
88%
Level 1: 80%+
NEET - 2022
Hints
Select the correct statements.
Choose the most appropriate answer from the options given below :
1. (a), (b) and (e) only
2. (c), (d) and (e) only
3. (b), (c) and (d) only
4. (a), (b) and (c) only
| (a) | Angiotensin II activates the cortex of adrenal gland to release aldosterone. |
| (b) | Aldosterone leads to increase in blood pressure. |
| (c) | ANF acts as a check on renin-angiotensin mechanism. |
| (d) | ADH causes vasodilation. |
| (e) | Vasopressin is released from adenohypophysis. |
1. (a), (b) and (e) only
2. (c), (d) and (e) only
3. (b), (c) and (d) only
4. (a), (b) and (c) only
Subtopic: Autoregulation of GFR |
75%
Level 2: 60%+
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Hints
Given below are statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
In the light of the above statements, choose the correct answer from the options given below:
| Assertion (A): | Nephrons are of two types: Cortical & Juxta medullary, based on their relative position in cortex and medulla. |
| Reason (R): | Juxta medullary nephrons have short-loop of Henle whereas, cortical nephrons have longer loop of Henle. |
| 1. | (A) is False, (R) is True. |
| 2. | Both (A) and (R) are True and (R) correctly explains (A). |
| 3. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 4. | (A) is True, (R) is False. |
Subtopic: Human Kidney: Location & Cut Section |
83%
Level 1: 80%+
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Which of the following statements are correct?
Choose the correct answer from the options given below:
| A: | An excessive loss of body fluid from the body switches off osmoreceptors. |
| B: | ADH facilitates water reabsorption to prevent diuresis. |
| C: | ANF causes vasodilation. |
| D: | ADH causes increase in blood pressure. |
| E: | ADH is responsible for decrease in GFR. |
| 1. | C, D and E only | 2. | A and B only |
| 3. | B, C and D only | 4. | A, B and E only |
Subtopic: Osmoregulation | Disorders of Excretory System |
82%
Level 1: 80%+
NEET - 2023
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