Consider the given two statements:
Statement I:  Protonephridia or flame cells are the excretory structures in Aschelminthes.
Statement II:  Reptiles, birds, land snails, and insects are uricotelic animals.
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

Subtopic:  Nitrogenous Excretory Products |
 74%
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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:  Nephron Part 1 | 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:  Nephron Part 1 | 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
Subtopic:  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:  Autoregulation of GFR |
 55%
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:  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
Subtopic:  Concentration of Urine |
 90%
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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:  Autoregulation of GFR |
 72%
From NCERT
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The part of the nephron, that plays a major role in increasing medullary interstitial osmolarity during concentration of urine by human kidney, is:
1. Descending limb of loop of Henle
2. Ascending limb of loop of Henle
3. PCT
4. DCT
Subtopic:  Nephron Part 1 | Nephron Part 2 |
 61%
From NCERT
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The glomerular ultrafiltrate will contain:
1. water, nitrogenous wastes, nutrients, and salts
2. blood cells, platelets and proteins
3. albumin, fats and other proteins
4. mainly blood cells
Subtopic:  Nephron Part 1 | Nephron Part 2 |
 89%
From NCERT
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