Biology Cell DUHS 2022
PMDC Verified Question 72 of 143
Plant cell wall is mainly made up of:
A
Cutin
B
Cellulose
C
Lignin
D
Murein
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Cellulose
Concept: The primary structural component of the plant kingdom's extracellular matrix is a specific carbohydrate polymer.

Solution: The primary plant cell wall is chiefly made up of cellulose (a polymer of $\beta$-D-glucose), along with some pectin and hemicellulose.

Distractor Autopsy:
  • Lignin: Found only in secondary cell walls of woody tissues.
  • Cutin: A waxy coating on the epidermis, not the main structural wall.
  • Murein: Bacterial cell wall material.

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.

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.