Question

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

(a) Descending limb of Loop of Henle is impermeable to water

(b) Distal convoluted tubule is incapable of reabsorbing HCO₃

(c) Nearly 99% of the glomerular filtrate is reabsorbed by the renal tubules

(d) Ascending limb of loop of Henle is impermeable to electrotytes

Answer 1

Correct Option (c) Nearly 99% of the glomerular filtrate is reabsorbed by the renal tubules
Explanation:

The plasma fluid that filters out from glomerular capillaries into Bownan's capsule of nephron is called glomerular filtrate. A comparison of the volume of the filtrate formed per day (180 L/day) with that of the urine released (1.5L), suggests that nearly 99% of the filtrate has to be reabsorbed by the renal tubules in a process called reabsorption.