The maintenance of high osmolarity of medullary interstitial fluid is due to-

1.Henle's loop

2.PCT

3.DCT

4.Collecting Duct

Subtopic:  Formation of Urine |
 73%
From NCERT
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Which of the following option is completely permeable to water and impermeable to electrolytes?

1.Descending limb of the loop of Henle

2.Ascending limb of loop of Henle

3.Loop of Henle

4.DCT

Subtopic:  Formation of Urine |
 91%
From NCERT
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Which of the following option is impermeable to water but permeable to electrolytes?

1.Descending Limb of the loop of Henle

2.Ascending limb of loop of Henle

3.Loop of Henle

4.DCT

Subtopic:  Formation of Urine |
 92%
From NCERT
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The concentrated filtrate gets diluted due to

 

1.Passage of electrolytes to the medullary fluid

 

2.Passage of water to the inner side of tubules

 

3.Passage of both water and electrolytes to the inner side of tubule

 

4.Both A and B

Subtopic:  Formation of Urine |
From NCERT
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Conditional reabsorption of sodium and water takes place in which of the following segments?

1.PCT

2.DCT

3.AL of LOH

4.DL of LOH

Subtopic:  Formation of Urine |
 84%
From NCERT
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Which of the following does not get selectively secreted by DCT cells?

 

1.K+

 

2.H+

 

3.Ammonia

 

4.Carbonate

Subtopic:  Formation of Urine |
 73%
From NCERT
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Which segment allows the passage of small amounts of urea into the medullary interstitium to keep up the osmolarity?

1.PCT

2.DCT

3.LOH

4.Collecting Duct

Subtopic:  Concentration of Urine: II | Concentration of Urine |
 76%
From NCERT
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Which of the following organisms have the capacity to concentrate urine?

 

1.Mammals

 

2.Fishes

 

3.Reptile

 

4.Amphibians

Subtopic:  Concentration of Urine: I | Concentration of Urine |
 83%
From NCERT
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Which of the following is the correct way of writing the unit of osmolarity?

1. Mosmo/L

2. mOsmol/L

3. MOsmo/L

4. mOSMol/L

Subtopic:  Concentration of Urine: II | Concentration of Urine |
 83%
From NCERT
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The gradient is mainly caused by

 

1.NaCl

 

2.Urea

 

3.Both A and B

 

4.Ammonia

Subtopic:  Concentration of Urine: II | Concentration of Urine |
 89%
From NCERT
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