Which Event Occurs in the Lungs

question 19

Multiple Choice

Which event occurs in the lungs?

• A) Free H⁺binds to hemoglobin.
• B) Plasma HCO₃- enters erythrocytes.
• C) CO₂and H₂O are converted into HCO₃- and H⁺in the plasma.
• D) Carbonic anhydrase converts CO₂and H₂O into HCO₃- and H⁺in erythrocytes.
• E) CO₂binds to hemoglobin.

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Definitions:

North America

A continent entirely within the Northern Hemisphere and almost entirely within the Western Hemisphere; it includes countries like the United States and Canada.

Thomas Robert Malthus

An English cleric and scholar, influential in the fields of political economy and demography, known for his theory that population growth would eventually outpace food production.

Karl Marx

A 19th-century philosopher, economist, and socialist whose works in economics laid the foundation for the understanding of labor and its relation to capital.

Overpopulation

A situation where the number of people exceeds the capacity of the environment to support life at a sustainable level.