Facilitated Diffusion Differs from Simple Diffusion Because

question 1

Multiple Choice

Facilitated diffusion differs from simple diffusion because

• A) facilitated diffusion requires energy, simple diffusion does not
• B) simple diffusion requires a membrane, but facilitated diffusion does not
• C) facilitated diffusion requires a carrier molecule, but simple diffusion does not
• D) facilitated diffusion moves substances against a concentration gradient, but simple diffusion moves substances down a concentration gradient
• E) in facilitated diffusion, the solvent moves through a membrane, but in simple diffusion the solute moves through the membrane

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