Question

Some substances like _____________ can move across the cell membrane by a process called diffusion.

Answer 1

Some substances like CO2, H2O and O2 can move across the cell membrane by a process called diffusion.

Answer 2

Answer:

Water, carbon dioxide, and oxygen

Explanation:

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.