Human urine is usually acidic because

1. the sodium transporter exchanges one hydrogen ion for each sodium ion, in peritubular

capillaries

2. excreted plasma proteins are' acidic

3. potassium and sodium exchange generates acidity

4. hydrogen ions are actively secreted into the filtrate

Subtopic:  Formation of Urine |
 69%
NEET - 2015
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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%
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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%
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NEET - 2014
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Figure shows human urinary system with structures labelled A to D. Select option,

which correctly identifies them and gives their characterstics and/of functions.

1. A-adrenal gland located at the anterior part of kidney. Secrete catecholamines,

which stiumate glycogen breakdown

2. B-pelvis broad funnel shaped space inner to hilum, directly connected to loops of

Henle

3. C-mediulla-inner zone of kidney and contains complete nephrons

4. D-cortex-outer part of kidney and do not contain any part of neohrons

Subtopic:  Human Kidney: Functions |
 77%
NEET - 2013
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Which one of the following is not a part of a renal pyramid?

1. Convoluted tubules

2. Collecting ducts

3. Loops Henle

4. Peritubular capillaries

Subtopic:  Human Kidney: Location & Cut Section |
NEET - 2011
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Uricotelic mode of passing out nitrogenous wastes is found in

1. birds and annelids

2. amphibians and reptiles

3. insects and amphibians 

4. reptiles and birds 

Subtopic:  Nitrogenous Excretory Products |
 80%
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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 |
 62%
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 |
 80%
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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 |
 83%
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NEET - 2010
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Uric acid is the chief nitrogenous component of the excretory products of 

1. man                             

2. earthworm

3. cockroach                     

4. frog

Subtopic:  Nitrogenous Excretory Products |
 69%
NEET - 2009
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