Multiple Choice
Which of the following statements is true for all types of passive transport?
A) Proteins are needed to transport molecules across the membrane.
B) The concentration gradient is the driving force.
C) Only small polar molecules are able to cross the plasma membrane.
D) Ions never cross the plasma membrane by passive transport.
Correct Answer:

Verified
Correct Answer:
Verified
Q28: Plasma membranes are selectively permeable. This means
Q29: Which of the following statements regarding membrane
Q30: Oxygen crosses a plasma membrane by<br>A) osmosis.<br>B)
Q31: The fluid mosaic model describes the plasma
Q32: When a cell uses chemical energy to
Q34: If you were working for a pharmaceutical
Q35: When two aqueous solutions that differ in
Q36: Which of the following statements regarding thermodynamics
Q37: If you shut off the system and
Q38: Americans spend up to $100 billion annually