Biology Biomolecules BUMHS 2022
PMDC Verified Question 96 of 142
Two simplest amino acids are:
A
Trypsin and glycine
B
Trypsin and alanine
C
Glycine and alanine
D
Glutamate and alanine
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Glycine and alanine
Concept:

The complexity of an amino acid is dictated by the size and branching of its R-group.

Solution:

  • Glycine: The absolute simplest amino acid, with an R-group consisting of just a hydrogen atom (\(-H\)).


  • Alanine: The second simplest amino acid, with an R-group consisting of just a small methyl group (\(-CH_3\)).


  • These two have the smallest molecular weights and least complex side chains.


Why other options are incorrect:

  • Trypsin: This is not an amino acid at all; it is a massive, complex digestive protein (enzyme).


  • Glutamate: Contains a larger, negatively charged carboxylic acid side chain, making it significantly more complex.

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.

Previous Question All Biomolecules MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App