Diffusion And Osmosis

Question 1

Diffusion

Answer 1

Movement of substances from an area of high concentration to an area of low concentration

Question 2

Direct passive diffusion

Answer 2

• doesnt need help
• didnt need energy
• tiny nonpolar like O2 and CO2 freely pass

Question 3

Facilitated passive diffusion

Answer 3

Need help to get through, like H20

Question 4

Active transport

Answer 4

Cells can pump/transport against natural diffusional gradient
-requires energy (ATP) and transport proteins

Question 5

Osmosis

Answer 5

The diffusion of water molecules across cell membrane

Question 6

Chemiosmosis

Answer 6

Water moving across