Tubular reabsorption and tubular secretion differ in that
A) tubular secretion is a passive process; tubular reabsorption uses active transport.
B) tubular secretion adds materials to the filtrate; tubular reabsorption removes materials from the filtrate.
C) tubular reabsorption increases urine volume; tubular secretion decreases urine volume.
D) tubular reabsorption occurs in Bowman capsule; tubular secretion occurs in the peritubular capillary.
E) tubular secretion moves materials from the filtrate into the blood; tubular reabsorption moves materials from the blood into the filtrate.

Question

Quizplus · Accepted Answer

Tubular secretion involves the transfer of materials from the blood into the renal tubule, thereby adding substances to the filtrate. Tubular reabsorption, conversely, involves the movement of substances from the filtrate back into the bloodstream, effectively removing them from the filtrate. This distinction highlights the roles these processes play in refining the composition of urine and maintaining homeostasis.

Tubular Reabsorption and Tubular Secretion Differ in That