Multiple Choice
Why can't the large, negatively charged intracellular proteins (A-) permeate the cell membrane
A) They are greater than 0.8 nm in diameter and are not lipid soluble.
B) There are carriers for them.
C) No concentration or electrical gradient exists for them.
D) There are no positively charged ions to carry them.
Correct Answer:

Verified
Correct Answer:
Verified
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