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3 years ago

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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