Diffusion and Osmosis

In diffusion, where do the particles move?

• From high concentration to low concentration

• From low concentration to high concentration

• They do not move

• They move up

In osmosis, where do the water molecules move?

• From high concentration to low concentration

• From low concentration to high concentration

• They do not move

• They move up

What are the molecules that move in osmosis?

• Water molecules

• Oxygen molecules

• Carbon dioxide molecules

• Food particles

Where are the villi?

• The stomach

• The brain

• The intestines

• The liver

If I have a beaker of squash, and I put very little squash in the beaker and lots of water, is the concentration of squash dilute or concentrated?

• Dilute

• Concentrated

If I have a beaker of squash, and I put lots of squash in the beaker and very little water, is the concentration of squash dilute or concentrated?

• Dilute

• Concentrated

What is the name of the process where PARTICLES move from an area of high concentration to an area of low concentration?

• Photosynthesis

• Respiration

• Osmosis

• Diffusion

What is the name of the process where WATER MOLECULES move from an area of high concentration to an area of low concentration across a partially permeable membrane?

• Osmosis

• Diffusion

• Active transport

• Breathing

What is a partially permeable membrane?

• A barrier where some particles can move through

• It is not a barrier

• A barrier where no particles can move through

Where does osmosis happen in PLANTS?

• In the blood

• In the flowers

• The root hair cells

• The lungs