Question

Carbon dioxide is produced as an end product of the respiration of food inside a cell. In which direction will it diffuse across the plasma membrane?

Answer 1

Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.