asked 83.0k views
5 votes
Small, uncharged substances enter and leave the cell membrane through the process of

2 Answers

1 vote
it is cell surface membrane which control the exchange of materials between the cell and external environment(it take place in phospholipid and cholestrol)
3 votes

Answer:

B

Step-by-step explanation:

simple diffusion.

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User SiLent SoNG
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