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zimovet [89]
3 years ago
9

The cell membrane is a highly selective barrier that controls the movement of substances in and out of the cell. In fact, polar

molecules are unable to go across unless A. they are broken down into smaller pieces. B. they are enclosed in water-filled vesicles. C. they pass through channels in the cell membrane. D. they react with other substances to become nonpolar.
Biology
2 answers:
Lapatulllka [165]3 years ago
5 0
Im going to have to go with C. they pass through channels in the cell membrane
NISA [10]3 years ago
3 0

C. They pass through channels in the cell membrane.

<em>Your Welcome! :D</em>

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