Biology 9700 · AS & A Level · Movement into and out of cells

Movement into and out of cells — practice question

In certain cases involving a person with lung disease, the oxygen partial pressure in the pulmonary veins is lower than the oxygen partial pressure in the alveoli. Which of the following would help explain the situation described above?

  • A1, 2 and 4
  • B1, 3 and 4
  • C1 and 2 only
  • D3 and 4 only

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