Function of the PCT

Q. $HC{O}_3^{-}$ absorption takes place in

1. proximal convoluted tubule and distal convoluted tubule
2. distal convoluted tubule and collecting duct
3. proximal convoluted tubule and Henle’s loop
4. Henle’s loop and collecting duct

Q.

The blood constituents that remain unchanged in quantity after being circulated through the kidneys are _______.

1. Urea and glucose

2. Glucose and proteins

3. Uric acid and amino acids

4. Urea and uric acid

Q. A 22-year old woman runs a 10-kilometer race on a hot day and becomes dehydrated. Assuming that her ADH levels are high and that kidneys are functioning normally, in which part of the renal tubule is most water reabsorbed?

1. Proximal tubule
2. Loop of Henle
3. Distal tubule
4. Collecting duct

Q. Reabsorption of chloride ions and water from glomerular filtrate in proximal convoluted tubule occur respectively by

1. Active transport, Passive transport
2. Passive transport, Osmosis
3. Osmosis, Passive transport
4. Brownian movement, Diffusion

Q. At which nephron site is the tubular fluid glucose concentration highest?

1. A
2. B
3. C
4. E

Q. Removal of proximal convoluted tubule from the nephron will result in:

1. No urine formation
2. More diluted urine
3. More concentrated urine
4. No change in quality and quantity of urine

Q. Nearly 70–80 percent of electrolytes and water from the glomerular filtrate is reabsorbed in

1. proximal convoluted tubule
2. Bowman’s capsule
3. distal convoluted tubule
4. both a and c

Q. Removal of proximal convoluted tubule (PTC) from the nephron will result in:

1. No change in quality and quantity of urine
2. No urine formation
3. More electrolytes and water in urine
4. Less electrolytes and water in urine

Q. Major part of the reabsorption takes place in the of the nephrons.

1. DCT
2. PCT
3. Ascending limb
4. Descending limb

Q. Maximum reabsorption of useful substances from glomerular filtrate occurs in:

1. Collecting duct
2. Loop of Henle
3. Proximal convoluted tubule
4. Distal convoluted tubule

Q. The Na+/K+ ATPase pump helps in the reabsorption of

1. Sodium
2. Amino acids
3. Glucose
4. All of the above