Biology Enzymes SZABMU 2022
PMDC Verified Question 51 of 79
The maximum enzymatic activity of trypsin is shown at:
A
pH 2
B
pH 6
C
pH 8
D
pH 4
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: pH 8
Concept:

Trypsin is a proteolytic enzyme that continues the digestion of proteins after they leave the acidic stomach.

Solution:

  • Trypsin is released by the pancreas into the small intestine.
  • Because the acidic chyme from the stomach is neutralized by basic pancreatic juices, the small intestine has a pH of approximately 7.8 to 8.7.
  • Consequently, trypsin reaches its maximum catalytic activity at an alkaline pH of 8.


Why other options are incorrect:

A pH of 2 is highly acidic (optimal for pepsin). pH 4 and 6 are too acidic for small intestine enzymes and would denature trypsin.

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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