In cell respiration, what molecule serves as the main energy carrier produced?

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Multiple Choice

In cell respiration, what molecule serves as the main energy carrier produced?

Explanation:
ATP is the molecule that serves as the main energy carrier produced in cellular respiration. As glucose is broken down, NADH and FADH2 carry high-energy electrons to the electron transport chain. The energy from these transfers powers ATP synthase to convert ADP and inorganic phosphate into ATP. This ATP is the immediate fuel cells use for work—driving muscle contraction, active transport, and biosynthetic reactions. NADH and FADH2 are essential delivery vehicles for electrons that enable ATP production, while ADP is the substrate that ATP is made from.

ATP is the molecule that serves as the main energy carrier produced in cellular respiration. As glucose is broken down, NADH and FADH2 carry high-energy electrons to the electron transport chain. The energy from these transfers powers ATP synthase to convert ADP and inorganic phosphate into ATP. This ATP is the immediate fuel cells use for work—driving muscle contraction, active transport, and biosynthetic reactions. NADH and FADH2 are essential delivery vehicles for electrons that enable ATP production, while ADP is the substrate that ATP is made from.

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