Cellular Respiration Key Terms

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Cellular respiration

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The process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

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Glucose

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A simple sugar that is an important energy source in living organisms and is a component of many carbohydrates.

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Oxygen

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A gas that is brought into the body by the respiratory system and is essential for aerobic respiration.

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Carbon dioxide

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A gas that is expelled from the body by the respiratory system and is a byproduct of cellular respiration.

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Water

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A product of cellular respiration, formed when oxygen combines with hydrogen.

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ATP

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Adenosine triphosphate, the energy currency of the cell, produced during cellular respiration.

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Aerobic respiration

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A type of cellular respiration that requires oxygen to produce energy.

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Anaerobic respiration

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A type of cellular respiration that does not require oxygen and produces less energy than aerobic respiration.

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Mitochondria

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Organelles in the cell where aerobic respiration takes place, often referred to as the powerhouse of the cell.

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Energy transfer

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The process of transferring energy from glucose to ATP during cellular respiration.