Which of the following substances are not reabsorbed by active means of transport?

1. Glucose

2. Amino Acids

3. Nitrogenous waste

4. Na+

Which of the following substances are not reabsorbed by passive means of transport in tubules?

1. Water

2. Nitrogenous waste

3. Glutamate

4. Urea

Tubular secretion does not allow

1. Ionic balance of body fluids

2. Acid base balance of body fluids

3. Water amount in urine

4. Both B and C

Which of the following is not reabsorbed by PCT?

1. Glucose

2. Amino acid

3. 100% electrolytes

4. Water

Selective secretion of which of the following ions does not take place in PCT?

1. Hydrogen ions

2. Ammonia

3. Potassium ions

4. Chloride ions

Reabsorption is minimum of which of the following segments of tubule?

1. Ascending limb

2. PCT

3. DCT

4. Descending limb

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

Which of the following organisms have the capacity to concentrate urine?

1. Mammals

2. Fishes

3. Reptiles

4. Amphibians

Which of the following is not important for maintaining the increasing osmolarity in the medullary interstitium?

1. The proximity between Henle's loop and vasa recta

2. Counter current flow in two limbs of tubule

3. The differential permeability of different segments of nephron

4. Counter current flow in two limbs of Vasa recta

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