The Exchange of Oxygen and Carbon Dioxide Between the Blood

question 23

Multiple Choice

The exchange of oxygen and carbon dioxide between the blood and the lungs is called ________.

• A) inspiration
• B) external respiration
• C) exhalation
• D) internal respiration

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Definitions:

Metabolism

The set of life-sustaining chemical reactions in organisms for converting food to energy, repairing cells, and discarding waste.

Electrolytes

Minerals in the body fluids important for the normal function of cells and organs, such as sodium, potassium, and calcium.

Carbohydrates

Essential nutrients found in foods like bread, rice, and fruits that body uses as its primary energy source.

Hydrogen Ions

Positive ions (protons) of hydrogen, H+, which play a critical role in chemical reactions, including pH balance in solutions.