Question

_______ has a greater partial pressure in the pulmonary capillaries than in the alveoli, so it diffuses into the _______.

a. O2; alveoli O2
b. pulmonary cavities CO2
c. alveoli CO2; pulmonary capillaries

Answer 1

_O2_ has a greater partial pressure in the pulmonary capillaries than in the alveoli, so it diffuses into the _alveoli O2_.