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The Large, Negatively Charged Intracellular Proteins (A-) Cannot Permeate the Cell

Question 158

Multiple Choice

The large, negatively charged intracellular proteins (A-) cannot permeate the cell membrane because


A) they are greater than 0.8 nm in diameter and are not lipid soluble.
B) there are no carriers for them.
C) no concentration or electrical gradient exists for them.
D) two of these answers.
E) all of these answers.

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