Question

what is required in passive transport (like diffusion)? requires energy; goes with the gradient does not require energy; it goes with the gradient requires energy; goes against the gradient does not require energy; it goes against the gradient

Explanation:

Passive transport, like diffusion, is a spontaneous process. It moves substances from an area of higher concentration to an area of lower concentration (with the gradient) and does not require the input of energy (ATP). Active transport, on the other hand, requires energy and moves substances against the gradient.

Answer:

does not require energy; it goes with the gradient