Question

Contrast the processes of facilitated diffusion and active transport. 
[3 marks]

Accepted Answer

1. Facilitated diffusion involves channel or carrier proteins whereas active transport only involves carrier proteins;
2. Facilitated diffusion does not use ATP / is passive whereas active transport uses ATP;
3. Facilitated diffusion takes place down a concentration gradient whereas active transport can occur against a concentration gradient;

Front	Contrast the processes of facilitated diffusion and active transport. [3 marks]
Back	1. Facilitated diffusion involves channel or carrier proteins whereas active transport only involves carrier proteins; 2. Facilitated diffusion does not use ATP / is passive whereas active transport uses ATP; 3. Facilitated diffusion takes place down a concentration gradient whereas active transport can occur against a concentration gradient;

Facilitated Diffusion Active Transport Involves Carrier Concentration Contrast