Question

How does osmosis occur?

Answer 1

Osmosis is the diffusion of water where molecules of water move passively (without energy) from high concentration to low concentration.

Explanation:

Osmosis is the diffusion of water where molecules of water move passively (without energy) from high concentration to low concentration.

A good example would be the way water rushes into a sponge, when a dry sponge is placed in a pan of water. Water fills the empty spaces of the sponge until the concentration in and out of the sponge is normalized.

Here is a video which describes how osmosis impacts onion cells placed into tap water and then into a salt water solution.

Hope this helps!