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Salsk061 [2.6K]
2 years ago
8

1. What are two reason that some molecules require membrane proteins in order to help them across a

Biology
1 answer:
olya-2409 [2.1K]2 years ago
6 0

Answer:

Sometimes, molecules cannot move through the cell membrane on their own. These molecules need special transport proteins to help them move across the membrane, a process known as facilitative diffusion. ... Many channel proteins allow the diffusion of ions. Ions are charged atoms.

Explanation:

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