A potato strip of mass 5.0 g has mass 5.5 g after 30 minutes in water. The percentage change in mass is

  1. −10%
  2. +5%
  3. +10%
  4. +0.5%
Answer

C) +10%

(5.5 − 5.0) ÷ 5.0 × 100 = 10%. O Level Biology · Topic 3 Movement into and out of Cells · 3.1 Diffusion and osmosis

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