Which statement is true for both diffusion and osmosis?

  1. They involve only water
  2. They are passive and need no energy from respiration
  3. They need carrier proteins
  4. They move particles against a gradient
Answer

B) They are passive and need no energy from respiration

Both are passive processes. O Level Biology · Topic 3 Movement into and out of Cells · 3.2 Active transport

Biology MCQ · More O Level Biology: Movement into and out of Cells MCQs · Practise