The process of reabsorption occurs by

1. Active mechanism

2. Passive mechanism

3. Both A and B

4. Always Facilitated transport

Renin

1. Stimulates the glomerular blood flow

2. Suppresses the GFR

3. As such no effect over GFR

4. Plays role in counter current

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 is almost completely reabsorbed by active reabsorption in the nephrons of a healthy person?

1. Urea

2. Creatinine

3. Glucose

4. Water

Which of the following is not reabsorbed by PCT?

1. Glucose

2. Amino acid

3. 100% electrolytes

4. Water

Which one of the following statements in regard to excretion by the human kidneys is correct?

Which of the following statements is correct?

1. The ascending limb of loop of Henle is impermeable to water

2. The descending limb of loop of Henle is impermeable to water

3. The ascending limb of loop of Henle is permeable to water

4. The descending limb of loop of Henle is permeable to electrolytes

On average, what amount of urea is excreted out per day by a healthy human being?

1. 5-10 gm

2. 15-20 gm

3. 25-30 gm

4. 50-60 gm

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

The majority of water and salt filtered into Bowman’s capsule is reabsorbed by:

1. the brush border of the transport epithelia of the proximal tubule

2. diffusion from the descending limb of the loop of Henle into the hypertonic interstitial fluid of the medulla

3. active transport across the transport epithelium of the thick upper segment of the ascending limb of the loop of Henle

4. selective secretion and diffusion across the distal tubule