Biology 5090 · O Level · Human gas exchange

Human gas exchange — practice question

Through what pathway does oxygen enter the blood?

  • Aalveoli → capillaries → trachea → bronchioles → bronchi
  • Bbronchi → alveoli → capillaries → trachea → bronchioles
  • Ccapillaries → bronchioles → alveoli → bronchi → trachea
  • Dtrachea → bronchi → bronchioles → alveoli → capillaries

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