Which of the following constituent is/are maximum in the filtrate that leaves proximal convoluted tubules?
Correct answer: C. Nitrogenous waste
- A. Glucose
- B. Amino acids
- C. Nitrogenous waste
- D. All of these
Explanation
Glucose and amino acids are normally reabsorbed almost completely from the filtrate in the proximal convoluted tubule, whereas nitrogenous wastes such as urea largely remain in the tubular fluid. Students may choose d because all three substances enter the initial filtrate, but glucose and amino acids do not remain in maximum amounts after PCT reabsorption.
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