Biology 0610 · IGCSE · Gas exchange in humans

Gas exchange in humans — practice question

The diagram shows a cross-section of an alveolus and a capillary. By what process does carbon dioxide move from Y to X?

  • Aby diffusion
  • Bby osmosis
  • Cby translocation
  • Dby transpiration

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI