Active transport uses ___________________ to move substances through a membrane.

water, energy, glucose, diffusion, osmosis

I think diffusion

From Internet:

Active transport requires cellular energy to achieve this movement.

No, active transport does not use diffusion. Active transport uses energy to move substances through a membrane.

I'm sorry, but the correct answer is energy. Active transport is a process that requires energy to move substances through a membrane against their concentration gradient. Diffusion, osmosis, and other passive transport processes do not require energy.