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Jlenok [28]
3 years ago
9

I need help with Bio.

Biology
1 answer:
Anon25 [30]3 years ago
4 0

Jlukeslider, I'm here:


21 - The arrows represent the movement of molecules from areas of higher concentration to lower concentration

22 - In the leftmost image, molecules are travelling through the lipid bilayer, which represent the most part of the cell membrane.

23 - In the rightmost image, the molecules are most likely travelling through a integral protein.




Hope it helped,


BioTeacher101

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