Glencoe Biology

Section 2: The Plasma Membrane

Self-Check Quizzes

1.
A ____ contains polar and nonpolar ends, forming the plasma membrane.
A)microtubule
B)transport protein
C)cytoskeleton
D)phospholipid bilayer
2.
What is the function of a selectively permeable membrane?
A)provides alternative to phospholipid bilayer
B)prevents transport proteins from harming cell
C)controls what enters and leaves cell
D)blocks all water from entering cell
3.
What does this depict?
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A)cytoskeleton
B)fluid mosaic model
C)impermeable membrane
D)genetic material
4.
What critical function does cholesterol serve in the body?
A)destroys the plasma membrane
B)binds fatty acid tails to water
C)disrupts homeostasis
D)increases fluidity of plasma membrane
5.
What moves needed substances or waste materials through the plasma membrane?
A)transport proteins
B)polar heads
C)DNA
D)water molecules
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