Biology Homeostasis PMDC Conceptual Practice
PMDC Verified Question 39 of 99
Nitrogenous wastes like ammonia and urea are generated as by-products of which metabolic catabolic pathway?
A
Assimilation
B
Decarboxylation
C
Deamination
D
Ingestion
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Deamination
Concept: Catabolism of amino acids.

Solution: When excess proteins are consumed, amino acids undergo deamination in the liver. The removed amino group is converted into toxic ammonia and subsequently into urea.

Why other options are incorrect:
  • Option A: Assimilation is the anabolic incorporation of absorbed nutrients into body tissues.

  • Option B: Decarboxylation is the removal of a carboxyl group (releasing \(\text{CO}_2\)).

  • Option D: Ingestion is the intake of food into the digestive tract.

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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