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Maksim231197 [3]
3 years ago
14

I need more help with science again

Chemistry
2 answers:
Sloan [31]3 years ago
5 0
Membranes are barriers and “gatekeepers”, they only let certain molecules pass through them.

they also transport nutrients to the cell
Rina8888 [55]3 years ago
3 0
Cell membrane : decides what enters and leaves, it also decides which proteins come in and out
passive transport : passive transport uses energy and i’m pretty sure it’s a transport that allows only some proteins to go through such as proteins
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