Diffusion and Osmosis

Diffusion is a substance moving from an area of low concentration to an area of high concentration.

• True

• False

Which process is responsible for gas exchange in the lungs?

• Active transport

• Osmosis

• Diffusion

What is osmosis?

• The overall movement of water, through a partially permeable membrane, from a region of low water particle concentration to a region of high water particle concentration

• The overall movement of water, through a partially permeable membrane, from a region of high water particle concentration to a region of low water particle concentration

• The overall movement of water from a region of low water concentration to a region of high water concentration

The process by which root hair absorbs water is known as ________.

• Osmosis

• Diffusion

• Active transport

What will happen to a strip of potato when placed in salt?

• It will gain water by osmosis and expand

• It will not change

• It will lose water by osmosis and shrink

Osmosis is a special type of diffusion dealing exclusively with...

• Oxygen

• Blood cells

• Water