The main energy currency produced during cellular respiration is what molecule?

The main energy currency produced during cellular respiration is what molecule?

• A. Adenosine triphosphate
• B. Adenosine diphosphate
• C. Nicotinamide adenine dinucleotide
• D. Flavin adenine dinucleotide

Answer: (A)

ATP serves as the cell’s energy currency. It stores energy in its three phosphate groups, and the energy is released when the terminal phosphate is removed, powering many cellular tasks. During cellular respiration, energy from nutrients is captured and stored as ATP through substrate-level phosphorylation and oxidative phosphorylation. While electron carriers like NADH and FADH2 shuttle high-energy electrons to the electron transport chain to drive ATP production, they are not the energy currency themselves. ADP is the lower-energy form that becomes ATP again. So the molecule produced as the main energy currency is ATP.

ATP serves as the cell’s energy currency. It stores energy in its three phosphate groups, and the energy is released when the terminal phosphate is removed, powering many cellular tasks. During cellular respiration, energy from nutrients is captured and stored as ATP through substrate-level phosphorylation and oxidative phosphorylation. While electron carriers like NADH and FADH2 shuttle high-energy electrons to the electron transport chain to drive ATP production, they are not the energy currency themselves. ADP is the lower-energy form that becomes ATP again. So the molecule produced as the main energy currency is ATP.