Multiple Choice
Which statement about the plasma membrane is true?
A) It appears trilaminar under a light microscope.
B) Its glycocalyx serves as receptor sites for binding chemical messengers in the ECF.
C) It is impermeable to lipid-soluble substances.
D) Some of its carriers transport ions.
E) Its channels are impermeable to any substance smaller than 0.8 nm in diameter.
Correct Answer:
Verified
Correct Answer:
Verified
Q18: The two types of _ transport include
Q19: The membrane potential that exists when the
Q20: Calcium and sodium ions are in a
Q21: Gap junctions play an important role in
Q22: Opening a sodium channel when the membrane
Q24: Sodium-potassium pumps indirectly provide the energy source
Q25: Indicate the various roles of the following
Q26: Which statement(s) would be true about the
Q27: The rate at which "X" can diffuse
Q28: Pinocytosis is a form of<br>A)active transport<br>B)cytokinesis<br>C)endocytosis<br>D)exocytosis<br>E)hemolysis