Biology Homeostasis PMDC Conceptual Practice
PMDC Verified Question 66 of 99
The majority of essential filtered organic solutes (such as 100% of glucose and amino acids) are reabsorbed in the:
A
Proximal tubule
B
Distal tubule
C
Bowman's capsule
D
Glomerulus
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Proximal tubule
Concept: Proximal tubule nutrient reabsorption.

Solution: The proximal tubule contains specialized secondary active cotransporters that reabsorb virtually all filtered glucose, amino acids, and water-soluble vitamins.

Why other options are incorrect:
  • Option B: The distal tubule regulates electrolytes (\(\text{Na}^+\), \(\text{K}^+\), \(\text{Ca}^{2+}\)) and acid-base balance, not primary nutrient reabsorption.

  • Option C & Option D: Perform filtration rather than reabsorption.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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