Cell membrane test (Diffusion, Osmosis, Passive Transport, etc)

What is Diffusion?

• The progression of water consistently changing from solid, liquid, and gas

• The movement of molecules of a low concentration to a higher concentration

• The movement of molecules from a high concentration to an area with lower concentration

• The movement of water from a place with more water to a place with less water

The passage or diffusion of water or other solvents through a semipermable membrane.

Where is there a low concentration of dye?

• at the bottom of cup
• in the color
• at the top of cup 
• no concenteraion gradient

This picture shows molecules of red dye that have moved. What is this type of movement called?

• Osmosis; the water molecules are moving from high concentration to low

• Diffusion; the dye molecules are moving from low to high concentration

• Diffusion; the dye molecules are moving from high to low concentration.

• Facilitated diffusion; because the molecules are moving through a protein channel.

DRAW PASSIVE TRANSPORT HAPPENING RIGHT NOW!!!------>