Multiple Choice
Which of the following statements is true among all types of passive transport?
A) Only small polar molecules are able to cross the plasma membrane.
B) Ions never cross the plasma membrane by passive transport.
C) The concentration gradient is the driving force.
D) Proteins are needed to transport molecules across the membrane.
Correct Answer:
Verified
Correct Answer:
Verified
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Q25: The molecules responsible for membrane transport are<br>A)proteins.<br>B)steroids.<br>C)carbohydrates.<br>D)phospholipids.
Q26: Which characteristic promoted the utilization of lipids
Q27: Which of the following substances would have
Q28: Inhibition of an enzyme is irreversible when<br>A)covalent
Q30: Which of the following energy transfers is
Q31: Membrane phospholipids<br>A)have hydrophilic tails that face outward
Q32: Glucose molecules provide energy to power the
Q33: Relaying a message from a membrane receptor
Q34: A cell that neither gains nor loses