How Is a Carrier Protein Different from a Channel Protein

question 84

Multiple Choice

How is a carrier protein different from a channel protein?

• A)Carrier proteins use ATP, but channel proteins do not.
• B)Carrier proteins undergo conformational change so that they are open alternately to one side of the membrane or the other.
• C)Transport through carrier proteins depends on concentration gradients, but transport through channel proteins does not.
• D)Transport through a carrier does not depend on the random motion of molecules.

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