Biology Cell NUMS 2023
PMDC Verified Question 35 of 143
According to the fluid mosaic model of cell membrane, which zone is embedded inside?
A
Hydrophilic
B
Hydrophobic
C
Globular
D
Filamentous
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Hydrophobic
Concept: The amphipathic nature of phospholipids dictates membrane self-assembly in aqueous environments.

Solution: In the lipid bilayer, the non-polar fatty acid tails turn away from the watery intra- and extracellular fluids, pointing towards each other. This creates a deeply embedded hydrophobic (water-fearing) core.

Distractor Autopsy: The hydrophilic (water-loving) phosphate heads face outward towards the aqueous environment.

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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