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erastova [34]
3 years ago
14

When is facilitated diffusion necessary?

Biology
2 answers:
DaniilM [7]3 years ago
7 0

Answer:

When the molecules are too large.

Explanation:

Evgesh-ka [11]3 years ago
6 0

Answer:

When the molecules are too large.

Explanation:

Facilitated diffusion refers to the passive transport of substances down the concentration gradient via specific transport proteins present in the membrane. The large, polar, charged substances and ions cannot pass through the small spaces present between hydrophobic tails of membrane phospholipids. The transport proteins transport these substances in energy independent manner.

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