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3 votes
When is facilitated diffusion necessary?

a.) When the molecules are too large.

b.) When the molecules are insoluble.

c.) When the direction of movement is opposite to natural diffusion.

d.) none of the above

User Taaam
by
8.3k points

1 Answer

2 votes

Answer:

It is option C I think.. Not so sure but I think it's the right answer

User Karlene
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