Cell Structure and Function MCQ Quiz: GKFix - Bridge of Knowledge - Page 270

Question 1346

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Carbohydrates in the plasma membrane are usually attached to:

Nucleic acids
Water molecules
Cholesterol
Proteins or lipids

Question 1347

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The main function of the cell membrane is:

Energy production
Genetic storage
Selective permeability and boundary maintenance
Waste excretion

Question 1348

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In the phospholipid bilayer, the hydrophobic tails face:

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

Question 1349

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The amphipathic nature of phospholipids means they have:

Two hydrophilic ends
Two hydrophobic ends
A hydrophilic head and hydrophobic tail
Only hydrophobic regions

Question 1350

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Cholesterol in the cell membrane primarily affects:

Membrane thickness
Membrane rigidity
Membrane porosity
Membrane fluidity