Question

define passive transport​

Answer 1

Answer:

Passive transport is a movement of ions and other atomic or molecular substances across cell membranes without need of energy input.

Answer 2

Answer:

Passive transport, also known as passive diffusion, is a process by which an ion or molecule passes through a cell wall via a concentration gradient, or from an area of high concentration to an area of low concentration. It’s like moving from the train to the platform of a subway station, or stepping out of a crowded room. Basically, passive transport gives an ion or molecule “room to breathe.”