Biology Cell NUMS 2022
PMDC Verified Question 77 of 143
Which molecules do not contribute to the formation of biological membranes?
A
Phospholipids
B
Glycoproteins
C
Glycolipids
D
Nucleoproteins
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Nucleoproteins
Concept: Biological membranes are composed of a specific set of macromolecules.

Solution: Nucleoproteins are complexes of nucleic acids (DNA/RNA) and proteins (e.g., histones, ribosomes). They are located inside the nucleus or cytoplasm and play no role in forming the plasma membrane.

Distractor Autopsy: Phospholipids form the main matrix, while glycoproteins and glycolipids are crucial components of the cell membrane's outer surface.

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