In a juxtamedullary nephron, which part dips deep into the renal medulla?
1. Malpighian corpuscle
2. PCT
3. DCT
4. Loop of Henle
Subtopic: Â Nephron Part 1 |Â Nephron Part 2 |
 93%
From NCERT
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Consider the two statements:
| Assertion (A): | ANF mechanism acts as a check on the renin-angiotensin mechanism. |
| Reason (R): | ANF can cause vasodilation (dilation of blood vessels) and thereby decrease blood pressure. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | (A) is True but (R) is False. |
| 3. | Both (A) and (R) are False. |
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A). |
Subtopic: Â Autoregulation of GFR |
 83%
From NCERT
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Consider the given two statements:
1. Statement I is correct; Statement II is correct
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | Protonephridia or flame cells are the excretory structures in Aschelminthes. |
| Statement II: | Reptiles, birds, land snails, and insects are uricotelic animals. |
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Â Nitrogenous Excretory Products |
 74%
From NCERT
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Consider the two statements:
| Assertion (A): | As the filtrate passes upward in the ascending limb of the Loop of Henle, it gets diluted. |
| Reason (R): | The ascending limb is impermeable to water but allows the transport of electrolytes actively or passively. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Â Nephron Part 1 |Â Nephron Part 2 |
 80%
From NCERT
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The part of the nephron that reabsorbs electrolytes but does not reabsorb any water is:
| 1. | Descending limb of loop of Henle |
| 2. | Ascending limb of loop of Henle |
| 3. | PCT |
| 4. | DCT |
Subtopic: Â Nephron Part 1 |Â Nephron Part 2 |
 82%
From NCERT
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Which of the following organism is not uricotelic?
1. Land snails
2. Reptiles
3. Insects
4. Aquatic amphibians
1. Land snails
2. Reptiles
3. Insects
4. Aquatic amphibians
Subtopic: Â Nitrogenous Excretory Products |
 92%
From NCERT
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Consider the two statements:
| Assertion (A): | An excess of aldosterone can cause a decrease in potassium ion concentration in body fluids. |
| Reason (R): | Aldosterone acts mainly at the renal tubules and stimulates the reabsorption of Na+ and water. |
| 1. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 2. | (A) is True but (R) is False. |
| 3. | Both (A) and (R) are False. |
| 4. | Both (A) and (R) are True and (R) correctly explains (A). |
Subtopic: Â Autoregulation of GFR |
 56%
From NCERT
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On an average, roughly what percent of cardiac output is filtered by the kidneys per minute?
| 1. | 5 | 2. | 10 |
| 3. | 20 | 4. | 50 |
Subtopic: Â Formation of Urine |
 71%
From NCERT
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When compared to the initial filtrate formed, human kidneys can produce urine nearly:
1. 2 times concentrated
2. 4 times concentrated
3. 8 times concentrated
4. 10 times concentrated
1. 2 times concentrated
2. 4 times concentrated
3. 8 times concentrated
4. 10 times concentrated
Subtopic: Â Concentration of Urine |
 90%
From NCERT
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Consider the two statements:
| Statement I: | Both ADH and aldosterone attempt to decrease urine output. |
| Statement II: | A person with uncontrolled diabetes mellitus will have a higher than normal solute concentration in the urine. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement II is incorrect; Statement I is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Â Autoregulation of GFR |
 72%
From NCERT
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