Active transport involves all of the following except the
A) diffusion of solute through the lipid bilayer of a membrane.
B) pumping of solutes across the membrane.
C) hydrolysis of ATP.
D) transport of solute against a concentration gradient.
E) specific transport protein in the membrane.
Ans: A) diffusion of solute through the lipid bilayer of a membrane.
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Fill in the blank(s) with the appropriate word(s).