Amoeba Sisters Diffusion

What is diffusion?

• The movement of a substance against its concentration gradient.

• The net movement of a substance traveling down its concentration gradient.

• The process where molecules stop moving once equilibrium is reached.

• The active transport of molecules across a membrane.

Which statement accurately describes diffusion as a type of transport?

• It requires an input of energy, such as ATP.

• It moves substances from an area of low concentration to high concentration.

• It is a passive transport process that does not require added energy.

• It only occurs in water, not in gases.

Are you enjoying the video lesson?

• Yes

• No

What effect does a greater distance have on the rate of diffusion?

• It increases the diffusion rate.

• It decreases the diffusion rate.

• It has no effect on the diffusion rate.

• It only affects diffusion in liquids, not gases.

How does temperature generally affect the rate of diffusion?

• A lower temperature increases the diffusion rate.

• A higher temperature decreases the diffusion rate.

• A higher temperature generally increases the diffusion rate.

• Temperature has no effect on the diffusion rate.

Cells are the living unit that make up life

• True

• False