Consider the following statements :

I. Many bony fishes, aquatic amphibians, and aquatic insects are ammonotelic.

II. Mammals, many terrestrial amphibians, and cartilaginous fishes are ureotelic.

III. Reptiles, birds, land snails, and insects are uricotelic.

Which of the above statements are true?

1. I and II only

2. I and III only

3. II and III only

4. I, II and III

Subtopic:  Nitrogenous Excretory Products |
 81%
From NCERT
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Which of the following statements is correct?

1. The ascending limb of loop of Henle is impermeable to water

2. The descending limb of loop of Henle is impermeable to water

3. The ascending limb of loop of Henle is permeable to water

4. The descending limb of loop of Henle is permeable to electrolytes

Subtopic:  Formation of Urine |
 81%
From NCERT
NEET - 2017
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The part of nephron involved in active reabsorption of sodium is

1. distal convoluted tubule

2. proximal convoluted tubule

3. Bowman's capsule

4. descending limb of Henle's loop

Subtopic:  Formation of Urine |
 57%
From NCERT
NEET - 2016
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Which of the following does not favor the formation of large quantities of dilute urine?

1. Alcohol 

2. Caffeine

3. Renin 

4. Atrial-natriuretic factor

Subtopic:  Autoregulation of GFR |
 57%
From NCERT
NEET - 2015
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Which of the following causes an increase in sodium reabsorption in distal convoluted

tubule?

1. Increase in aldosterone levels

2. Increase in antidiuretic hormone levels

3. Decrease in aldosterone levels

4. Decrease in antidiuretic hormone levels

Subtopic:  Autoregulation of GFR |
 66%
From NCERT
NEET - 2014
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Which one of the following correctly explains the function of a specific part of a human

nephron?

1. Henle's loop - most reabsorption of the major substances from the glomerular filtrated 

2. Distal convoluted tubule - reabsorption of ions into the surrounding blood capillaries

3. Afferent arteriole - carries the blood away from the glomerulus towards renal vein 

4. Podocytes- create minute spaces (slit pores) for the filtration of blood into the

Bowman's capsule

Subtopic:  Formation of Urine: Ultrafiltration 1 | Formation of Urine: Ultrafiltration |
 87%
From NCERT
NEET - 2011
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Which one of the following statements is correct with respect to kidney function

regulation?

1. Exposure to cold temperatures stimulates ADH release

2. An increase in glomerular blood flow stimulates the formation of angiotensin II

3. During summer when the body loses a lot of water by evaporation, the release of ADH is

suppressed

4. When someone drinks a lot of water ADH release is suppressed

Subtopic:  Autoregulation of GFR |
 61%
From NCERT
NEET - 2011
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Which one of the following statements in regard to excretion by the human kidneys is correct?

1. Descending limb of loop of Henle is impermeable to water
2. Distal convoluted tubule is incapable of reabsorbing HCO3
3. Nearly 99 per cent of the glomerular filtrate is reabsorbed by the renal tubules
4. Ascending limb of loop of Henle is impermeable to electrolytes
Subtopic:  Formation of Urine |
 81%
From NCERT
NEET - 2010
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The principal nitrogenous excretory compound in humans is synthesised.

1. in kidneys but eliminated mostly through liver

2. in kidneys as well as eliminated by kidneys

3. in liver and also eliminated by the same through bile

4. in the liver, but eliminated mostly through kidneys

Subtopic:  Nitrogenous Excretory Products |
 82%
From NCERT
NEET - 2010
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Which one of the following is correct regarding the excretion?

1. Large amount of water from renal filtrate is reabsorbed in DCT and a less amount is reabsorbed by PCT.

2. The descending limb of loop of Henle is almost impermeable to salts.

3. Malpighian corpuscle is found in medulla region of kidney

4. The colour of urine is pale yellow and is slightly alkaline in nature.

Subtopic:  Formation of Urine |
 75%
From NCERT
AIIMS - 2011
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