Cell Structure and Function MCQ Quiz: GKFix - Bridge of Knowledge - Page 269

Question 1341

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What major technological advancement enabled detailed study of the cell membrane?

Light microscope
X-ray diffraction
Electron microscope
Phase-contrast microscope

Question 1342

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Which of the following statements about membrane fluidity is true?

Saturated fatty acids increase fluidity
Cholesterol always decreases fluidity
Unsaturated fatty acids increase membrane fluidity
Fluidity is independent of lipid composition

Question 1343

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Which of the following best defines transmembrane proteins?

Peripheral proteins on the inner leaflet
Floating proteins in the cytoplasm
Integral proteins that span the entire membrane
Attached to carbohydrates

Question 1344

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The hydrophobic effect drives the formation of:

Micelles only
Unilamellar vesicles
Phospholipid bilayers
Isolated lipid monolayers

Question 1345

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The term 'mosaic' in the fluid mosaic model refers to:

Uniform protein distribution
Homogeneous lipid arrangement
Random carbohydrate placement
The variety of proteins embedded in the membrane