Diffusion In And Out Of Cells

Question 1

Small molecules like _ move through the cell membrane (2)

Answer 1

Oxygen

CO2

Question 2

For _ cells rely on diffusion to transport O in and CO2 out

Answer 2

Respiration

Question 3

CO2 and O move in opposite directions due to their different _

Answer 3

Concentration gradients

Question 4

Lower oxygen inside cells _

Answer 4

Higher oxygen outside cells

Question 5

Higher CO2 inside cells _

Answer 5

Lower CO2 outside cells