Biology Cell NUMS 2024
PMDC Verified Question 6 of 143
Which function cannot be attributed to plasma membrane lipids?
A
Control of metabolic reaction across cell membrane
B
Maintaining cell membrane flexibility
C
Binding ligands for intracellular response
D
Recognition of cells having non-self-surface markers
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Control of metabolic reaction across cell membrane
Concept: Lipids form the structural barrier of the membrane, while proteins perform active metabolic and signaling tasks.

Solution: The control of metabolic reactions across the cell membrane (such as enzymatic activity or active ion pumping) is carried out by integral and peripheral membrane proteins, not the lipids.

Distractor Autopsy:
  • Flexibility: Maintained by phospholipids and cholesterol.
  • Recognition/Binding: Glycolipids (lipids with carb chains) act as antigens and receptors for ligands.

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