In initial filtrate of kidney, which of the following substance is selectively re-absorbed as the urine flows along the tube in a human kidney?
I. Glucose
II. Amino acids
Show answer & explanation
Correct answer: C
Explanation
Answer: Option 3 — Both I and II
During selective reabsorption in the nephron, useful substances are reabsorbed from the filtrate into the blood.
- Glucose is completely reabsorbed under normal conditions.
- Amino acids are also completely reabsorbed under normal conditions.
Therefore, both substances are selectively reabsorbed.
Correct Answer: Option 3 — Both I and II