Cell Structure and Function MCQ Quiz: GKFix - Bridge of Knowledge - Page 274

Question 1366

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Which of the following statements about membrane proteins is true?

All membrane proteins are peripheral
Integral proteins are always on the surface
Integral proteins can span the entire membrane
Membrane proteins cannot be extracted

Question 1367

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Human red blood cells are useful for studying the plasma membrane because:

They are transparent
They are large
They lack a nucleus and organelles
They are colorful

Question 1368

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Which of the following best describes the structure of the plasma membrane?

Single layer of lipids
Rigid protein framework
Phospholipid bilayer with embedded proteins
Solid gel-like matrix

Question 1369

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Cholesterol in the membrane primarily affects:

Membrane rigidity
Membrane thickness
Membrane porosity
Membrane fluidity

Question 1370

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The hydrophobic tails of phospholipids face:

Toward the extracellular space
Toward the cytoplasm
Toward the surface
Toward the interior of the membrane