Biology Cell MDCAT 2015
PMDC Verified Question 137 of 143
Fluid mosaic model of plasma membrane states that protein molecules float in a fluid like ____ layer.
A
Carbohydrate
B
Phospholipid
C
Glucose
D
Galactose
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Phospholipid
Concept: The biological membrane is not a static solid, but a dynamic, two-dimensional fluid.

Solution: The Fluid Mosaic Model describes the membrane as a fluid phospholipid bilayer in which integral and peripheral proteins are embedded and can float or move laterally.

Distractor Autopsy: Carbohydrates, glucose, and galactose are associated with the exterior surface (glycocalyx) but do not form the fluid layer itself.

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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