ADH:
I: is released when an excessive loss of fluid from the body activates osmoreceptors in the body.
II: prevents dieresis by facilitating water reabsorption from the initial and proximal parts of the tubules.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect

Subtopic:  Autoregulation of GFR |
 53%
From NCERT
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During the concentration of urine by human kidneys:
I: Small amounts of urea is transported back to medullary interstitium by ascending portion of vasa recta
II: NaCl is returned to the medullary interstitium by the descending portion of vasa recta
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Concentration of Urine: I |
From NCERT
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Regarding the human kidney:
1. glomerulus is a tuft of capillaries formed by the efferent arteriole
2. vasa recta is highly reduced in juxtamedullary nephrons
3. DCTs of many nephrons open into a straight tube called collecting duct
4. columns of Bertini are extensions of medulla into the cortex
Subtopic:  Nephron Part 1 |
 79%
From NCERT
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Consider the following statements:
I: Glomerulus is a tuft of capillaries formed by the efferent arteriole
II: Afferent arteriole forms the peritubular capillary network
III: Vasa recta is absent or highly reduced in juxtamedullary nephrons
 
1. Only III is correct
2. I is correct but II and III are incorrect
3. I, II and III are incorrect
4. I and II are correct
Subtopic:  Human Kidney: Location & Cut Section | Nephron Part 1 | Nephron Part 2 |
 63%
From NCERT
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Identify the part of the nephron that:
 
I: is lined by cuboidal brush bordered epithelium
II: reabsorbs 70-80 percent of electrolytes and water
 
1. Proximal convoluted tubule
2. Loop of Henle
3. Distal convoluted tubule
4. Collecting duct
Subtopic:  Nephron Part 1 | Nephron Part 2 |
 90%
From NCERT
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Angiotensin:
I: is a vasoconstrictor
II: stimulates the adrenal cortex to secrete aldosterone
 
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Osmoregulation |
 80%
From NCERT
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Identify the incorrect statement:
1. Glomerulus is a tuft of capillaries formed by afferent arteriole.
2. Blood from the glomerulus is carried away by an efferent arteriole.
3. Vasa recta is well developed in cortical nephrons.
4. The DCTs of many nephrons open into a straight tube called collecting duct.
Subtopic:  Nephron Part 1 | Nephron Part 2 |
 88%
From NCERT
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What would be true about the role of collecting duct in the concentration of urine by the kidneys?
I: Allows passage of small amounts of urea into the medullary interstitium
II: Large amounts of water could be reabsorbed from this part to produce a concentrated urine.
 
1. Only I 2. Only II
3. Both I and II 4. Neither I nor II
Subtopic:  Nephron Part 1 | Nephron Part 2 | Concentration of Urine |
 81%
From NCERT
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What is correct regarding the atrial natriuretic factor?
1. It causes  vasodilation and reduces blood pressure
2. It acts on the atrial wall of our heart and reduces cardiac output
3. It stimulates angiotensin leading to vasoconstriction
4. It acts on the distal tubule and lead to diuresis.
Subtopic:  Autoregulation of GFR |
 85%
From NCERT
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R): 
Assertion (A): The filtrate gets concentrated as it moves down the descending limb of loop of Henle in the human nephron.
Reason (R): The descending limb of loop of Henle is impermeable to water but allows transport of electrolytes actively or passively.
In the light of the above statements choose the correct answer from the options given below:
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 2 |
 74%
From NCERT
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