Question

what is the term for movement of molecules from an area of relatively lower to higher concentration that requires energy?
diffusion
osmosis
passive transport
active transport

Explanation:

Diffusion is movement from high - to low - concentration without energy. Osmosis is the diffusion of water across a semi - permeable membrane. Passive transport is movement from high - to low - concentration without energy. Active transport is the movement of molecules from low - to high - concentration that requires energy.

Answer:

D. active transport