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Some transport proteins act like tunnels or channels, while others are bound to the cell membrane ____ in order for molecules to diffuse through them.

A. Using energy

B. Changing shape

C. Providing a corridor

D. Changing size

2 Answers

2 votes
The answer is C or Providing a corridor
User MarkHu
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5 votes

Answer:

I think c ............

User Ritz
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