Which of the following is NOT a characteristic of active transport? *
A)It moves substances against a concentration gradient
B)It requires energy from the cell
C)It involves facilitated diffusion
D)It may use carrier proteins that often function as the sodium potassium pump

Facilitated diffusion uses channel proteins. Channel proteins allow substances to travel through a membrane going with the gradient. Since active transport goes against the gradient, facilitated diffusion would not be a characteristic of it.

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Which of the following is NOT a characteristic of active transport? * A)It moves substances against a concentration gradient B)It requires energy from the cell C)It involves facilitated diffusion D)It may use carrier proteins that often function as the sodium potassium pump

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Which of the following is NOT a characteristic of active transport? *
A)It moves substances against a concentration gradient
B)It requires energy from the cell
C)It involves facilitated diffusion
D)It may use carrier proteins that often function as the sodium potassium pump