Question

Why do active transport requires energy

Answer 1

Active transport is the process by which dissolved molecules move across a cell membrane from a lower to a higher concentration. In active transport, particles move against the concentration gradient - and therefore require an input of energy from the cell.

Answer 2

Answer:

the movement of molecules or ions frome a region of their lower concentration to a region of their higher consentration,i.e. against the concentration gardient is called active transport .This is the reason the process requies energy which is supplied as ATP generated by the cells during respiration

Explanation: