AP Biology (Mader), 11th Edition

Chapter 5: Membrane Structure and Function

Pre-Test

1
The plasma membrane is composed primarily of _____.
A)phospholipids
B)carbohydrates
C)waxes
D)nucleic acids
2
All of the following describe the tails of phospholipids EXCEPT:
A)nonpolar.
B)hydrophobic.
C)face the outside of the membrane.
D)made of fatty acids.
3
________ affects the fluidity of membranes.
A)Nucleotides
B)Proteins
C)Cholesterol
D)Glycolipids
4
Particular molecules or ions freely cross the plasma membrane with assistance from _____.
A)receptor proteins
B)cell recognition proteins
C)channel proteins
D)enzymatic proteins
5
A person's blood type is determined by the presence of particular _____ in the membranes of red blood cells.
A)phospholipids
B)glycoproteins
C)steroids
D)nucleic acids
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