How Do Large Polar and Charged Molecules Cross Biological Membranes

question 20

Multiple Choice

How do large polar and charged molecules cross biological membranes?

• A)Large polar and charged molecules can't cross biological membranes.
• B)Large polar and charged molecules cross biological membranes via diffusion through the hydrophilic core of the membrane.
• C)Large polar and charged molecules must be hydrolyzed before they can cross a biological membrane.
• D)Large polar and charged molecules cross biological membranes via transport proteins that form hydrophilic channels through the membrane.
• E)Both A and C

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