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The respiratory membranes facilitates the exchange of respiratory gases through diffusion. Oxygen enters the deoxygenated blood through diffusion because

a)

Partial pressure of oxygen in alveolar air and capillaries is 40 mm Hg and 100 mm Hg respectively

b)

Partial pressure of oxygen in alveolar air and capillaries is 100 mm Hg and 40 mm Hg respectively

c)

Partial pressure of oxygen in alveolar air and capillaries is 46 mm Hg and 40 mm Hg respectively

d)

Partial pressure of oxygen in alveolar air and capillaries is 40 mm Hg and 46 mm Hg respectively



Question ID - 2633 | SaraNextGen Top Answer

The respiratory membranes facilitates the exchange of respiratory gases through diffusion. Oxygen enters the deoxygenated blood through diffusion because

a)

Partial pressure of oxygen in alveolar air and capillaries is 40 mm Hg and 100 mm Hg respectively

b)

Partial pressure of oxygen in alveolar air and capillaries is 100 mm Hg and 40 mm Hg respectively

c)

Partial pressure of oxygen in alveolar air and capillaries is 46 mm Hg and 40 mm Hg respectively

d)

Partial pressure of oxygen in alveolar air and capillaries is 40 mm Hg and 46 mm Hg respectively

1 Answer
127 votes
Answer Key / Explanation : (b) -

(b)

Partial pressure of oxygen in alveolar air and capillaries is 100 mm Hg and 40 mm Hg, respectively.

Partial pressure of respiratory gases in-mm Hg

Respir

atory gases

Inspired

air on atmos

pheric air

Alveolar

air

Deoxy

genated blood

Oxyge

nated blood

Expired air

Tissue cells

158

0.3

100

40

40

45

95

40

116

32

40

45

127 votes


127