The primary waste product of aerobic metabolism is:

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Study for the Nassau County EMT Test. Prepare with flashcards and multiple-choice questions. Each question is accompanied by hints and explanations. Get ready for your exam!

Multiple Choice

The primary waste product of aerobic metabolism is:

Explanation:
During aerobic metabolism, cells break down glucose in the presence of oxygen to release energy, producing carbon dioxide and water as byproducts. Carbon dioxide is the main waste product because it is generated in large amounts and must be expelled by the lungs to prevent acid–base imbalance. Oxygen is a reactant, not a waste product, and water is also formed but is largely reused by the body rather than discarded as a primary waste. Nitrogen is not produced in this glucose-oxidation pathway. So the primary waste product is carbon dioxide.

During aerobic metabolism, cells break down glucose in the presence of oxygen to release energy, producing carbon dioxide and water as byproducts. Carbon dioxide is the main waste product because it is generated in large amounts and must be expelled by the lungs to prevent acid–base imbalance. Oxygen is a reactant, not a waste product, and water is also formed but is largely reused by the body rather than discarded as a primary waste. Nitrogen is not produced in this glucose-oxidation pathway. So the primary waste product is carbon dioxide.

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