What is the flow of molecules in passive transport?

The movement of molecules across a membrane without the input of energy is known as passive transport. When energy (ATP) is needed, the movement is known as active transport. Active transport moves molecules against their concentration gradient, from an area of low concentration to an area of high concentration.

Explanation:

hope this helps :D

creative diagnostics is a professional biological commercial company,specializing inassisting clients with t cell differentiationstudies.