Question

State two features of diffusion

Answer 1

Explanation: Both use ion channels to move ions across the cell membrane, in or out of the cell. Differences: Passive Transport (or Diffusion) moves ions from high concentration to low, using no metabolic energy. Active Transport moves ions from low concentration to high, using metabolic energy in the form of ATP.

Answer 2

Answer:

1) Movement of molecules along concentrated gradient.

2) In case of gas, diffusion is rapid