Cell Structure and Function MCQ Quiz: GKFix - Bridge of Knowledge - Page 273

Question 1361

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Which of the following is NOT a major component of the cell membrane?

Phospholipids
Proteins
Nucleic acids
Cholesterol

Question 1362

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Which of the following best defines the function of the cell membrane?

Energy production
Genetic material storage
Selective permeability and boundary maintenance
Waste excretion What determines the fluidity of the cell membrane?
Composition of lipids and presence of cholesterol
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Amount of carbohydrates
Size of the cell
Number of ribosomes

Question 1363

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The fluid mosaic model emphasizes:

Rigid and unchanging structure
Homogeneous composition
Dynamic and flexible structure of the membrane
Uniform protein distribution

Question 1364

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Which statement correctly describes the distribution of phospholipids in the membrane?

They form a single layer
They cluster together randomly
They form a bilayer with hydrophilic heads outward
They are only on the inner leaflet

Question 1365

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The role of carbohydrates in the plasma membrane is primarily related to:

Energy storage
Structural support
Signal transduction
Cell recognition