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finlep [7]
3 years ago
15

Explain how the cell membrane controls the movement of materials into and out of the cell ?

Chemistry
1 answer:
sukhopar [10]3 years ago
5 0
It's called simple diffusion, the small molecules without charges such as oxygen and carbon dioxide can flow through a plasma membrane without assistance and without expending energy. Other substances such as proteins, glucose and charged particles called ions cannot pass through the selectively permeable membrane.
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