Q. 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 reabsorption $HCO_{3}$
C) Nearly 99 per cent of the glomerular filtrate is reabsorbed by the renal tubules
D) Ascending limb of loop of Henle is impermeable to electrolytes
Explanation
The plasma fluid that filters out from glomerular capillaries into Bowman’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 (1.5 L), suggest that nearly 99% of the filtrate has to be reabsorbed by the renal tubules. This process is called reabsorption.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.