Tubular secretion occurs

1. After urine formation

2. Before urine formation

3. During urine formation

4. Both A and B

The lining of PCT is made up of

1. Simple cuboidal brush border epithelium

2. Simple squamous brush border epithelium

3. Simple columnar brush border epithelium

4. Compound cuboidal brush border epithelium

Which of the following is not reabsorbed by PCT?

1. Glucose

2. Amino acid

3. 100% electrolytes

4. Water

Bicarbonate is not reabsorbed by

1. PCT

2. DCT

3. Henle's Loop

4. All of these

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 maintenance of high osmolarity of medullary interstitial fluid is

1. Henle's loop

2. PCT

3. DCT

4. Collecting Duct

Which of the following option is impermeable to water but permeable to electrolytes?

1. Descending Limb of loop of Henle

2. Ascending limb of loop of Henle

3. Loop of Henle

4. DCT

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

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