First slide

Exchange of Gases

Question

The partial pressure of oxygen at the site A(alveoli of lungs) and B (oxygenated blood) is

Easy

A

A : 10 mm Hg B : 95 mm Hg
B

A : 159 mm Hg B : 95 mm Hg
C

A : 104 mm Hg B : 40 mm Hg
D

A : 140 mm Hg B : 95 mm Hg

Solution

Partial pressure of oxygen;
Alveoli - 104 mmHg
Oxygenated blood - 95 mmHg
Deoxygenated blood - 40 mmHg
Atmospheric air - 159 mmHg
Tissues - 40 mmHg

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