factors affecting...

Question 1

diffusion

Answer 1

1. concentration gradient
2. membrane thickness
3. surface area
4. temperature

Question 2

facilitated diffusion

Answer 2

1. number of specialised proteins
2. concentration gradient

Question 3

osmosis

Answer 3

1. water concentration gradient
2. surface area
3. membrane thickness

Question 4

active transport

Answer 4

1. number of carrier proteins
2. speed of proteins
3. rate of aerobic respiration