Biology 0610 · IGCSE · Gas exchange in humans

Gas exchange in humans — practice question

The diagrams illustrate the depth and rate of breathing in a person at 12.00 pm and 1.00 pm. What change occurs in the person’s breathing between 12.00 pm and 1.00 pm?

  • Adepth of breathing decreases; rate of breathing decreases
  • Bdepth of breathing decreases; rate of breathing increases
  • Cdepth of breathing increases; rate of breathing decreases
  • Ddepth of breathing increases; rate of breathing increases

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