Cell Structure and Function MCQ Quiz: GKFix - Bridge of Knowledge - Page 268

Question 1336

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Biochemical investigations revealed that cell membranes contain:

Only lipids
Only proteins
Water channels
Proteins and carbohydrates

Question 1337

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What additional lipid helps modulate membrane fluidity?

Sphingomyelin
Glycerol
Fatty acids
Cholesterol

Question 1338

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The nonpolar tails of phospholipids are located:

On the surface
Attached to carbohydrates
Inside the bilayer
Bound to ions

Question 1339

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The main structural components of the plasma membrane are:

Nucleic acids and proteins
Carbohydrates and nucleic acids
Lipids and proteins
Proteins and carbohydrates

Question 1340

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Which cells were especially useful in early plasma membrane research?

Bacterial cells
Plant cells
Nerve cells
Human red blood cells