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 |
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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 |
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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 |
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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 |
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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%
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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%
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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%
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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 |
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The NaCl is transported by the ascending limb of Henle's loop which is exchanged with the…….

1. Ascending limb of vasa recta

2. Descending limb of vasa recta

3. Ascending limb of LOH

4. Descending limb of LOH

Subtopic:  Concentration of Urine: II | Concentration of Urine |
 86%
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NaCl is returned to the interstitium by

 

1.Ascending portion of LOH

 

2.Ascending portion of vasa recta

 

3.Descending portion of LOH

 

4.Descending portion of vasa recta

Subtopic:  Formation of Urine |
 65%
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