Why Is Air a Better Respiratory Medium Than Water

question 26

Multiple Choice

Why is air a better respiratory medium than water?

• A) A given volume of air can contain more O₂ than the same volume of water.
• B) O₂ diffuses faster in air than in water.
• C) Less work is required to move air over respiratory exchange surfaces.
• D) Both a and c
• E) All of the above

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Definitions:

Fibrinogen

A protein found in plasma that is important for blood clotting.

Plasma Protein

Proteins found in blood plasma that perform various functions including clotting, defense against pathogens, and transport of substances.

Blood Clotting

A complex process involving platelets and clotting factors to prevent excessive bleeding when the vascular system is injured.