Which is a type of passive transport?

endocytosis

diffusion

gap junction

exocytosis

Diffusion because it requires no energy

The answer is Diffusion.

Explanation:

Passive transport is a movement of biochemical, atomic or molecular substances through cell membranes without the need for energy overload, while diffusion is an irreversible physical process in which atoms or molecules move from a high region concentration to an area of low concentration, where said process does not require energy input, is frequent as a form of cell exchange.