Question

multiple choice question
simple diffusion, osmosis and filtration are all examples of:
passive transport
active transport

Explanation:

Passive transport is the movement of substances across a cell membrane without the use of energy. Simple diffusion (movement of molecules from high to low concentration), osmosis (diffusion of water), and filtration (movement due to pressure differences) all occur down concentration or pressure gradients and do not require energy, so they are passive transport. Active transport requires energy (ATP) to move substances against gradients, which these processes do not.

Answer:

A. passive transport