Size of molecule
Carbon dioxide 50
Ethanol 50
Glucose 180
Glycerol 100
Oxygen 40
Urea 70
Water 5
1. Which substances do you think will diffuse across the lipid bilayer most quickly? Explain your answer.
2. Which substances do you think will diffuse most slowly? Explain your answer.
3. What factors do you think might affect the rate of diffusion? Describe at least 2 factors