First slide

Urine Formation

Question

Which of the following substance are secreted by tubular cells into the filtrate during urine formation?

Easy

A

Glucose, amino acids, Na⁺
B

H⁺, K⁺, glucose
C

Na⁺, H⁺, aminoacids
D

K⁺, H⁺, ammonium ions

Solution

Selective secretion of hydrogen and potassium ions and NH₃ takes place in renal tubules, to maintain the pH and sodium-potassium balance in blood.
Glucose, amino acids, sodium ion, etc., are reabsorbed from the renal tubules.

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