Multiple Choice
The plasma membrane of a cell and the membrane boundaries of organelles,such as mitochondria and chloroplasts,serve similar functions.What is one of the main functions of the membranes of both cells and organelles?
A) They keep reactants near each other to speed biological reactions.
B) They allow external chemicals to diffuse freely into and out of the cell.
C) They encourage cellular respiration at the membrane boundaries.
D) They keep water out of the cell and organelle interiors.
Correct Answer:
Verified
Correct Answer:
Verified
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