Question

Difference between selective reabsorption and tubular secretion

Answer 1

Hello there!
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This question was in my exam.
It was of 2 marks.
I have provided the answer in attachment.
Note- tubular reabsorption is same as selective reabsorption.
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Good day!

Answer 2

Selective reabsorption is the process whereby certain molecules, after being filtered out of the capillaries along with nitrogenous waste products and water in the glomerulus, are reabsorbed from the filtrate as they pass through the nephron. Selective reabsorbtion occurs in the PCT. WhereasTubular secretion is the transfer of materials from peritubular capillaries to the renal tubular lumen; it is the opposite process of reabsorption. This secretion is caused mainly by active transport and passive diffusion. Usually only a few substances are secreted, and are typically waste products. .....Hope you understand