The cell's main energy currency is which molecule?

Study for the Manor Preboards Module 2 Test. Use flashcards and multiple choice questions that include hints and explanations. Prepare thoroughly for your exam!

Multiple Choice

The cell's main energy currency is which molecule?

Explanation:
Energy for cellular work comes from ATP. The molecule stores energy in its phosphate bonds, and when the cell needs energy, the terminal phosphate is removed, converting ATP to ADP and inorganic phosphate and releasing usable energy to power processes like muscle movement, active transport, and biosynthesis. ATP is regenerated from ADP and Pi through cellular respiration or fermentation, keeping a ready supply of energy. NADH is an electron carrier that helps generate ATP, but it isn’t the immediate energy currency used to drive individual tasks. AMP is a lower-energy form that signals low energy and is not the primary energy source.

Energy for cellular work comes from ATP. The molecule stores energy in its phosphate bonds, and when the cell needs energy, the terminal phosphate is removed, converting ATP to ADP and inorganic phosphate and releasing usable energy to power processes like muscle movement, active transport, and biosynthesis. ATP is regenerated from ADP and Pi through cellular respiration or fermentation, keeping a ready supply of energy.

NADH is an electron carrier that helps generate ATP, but it isn’t the immediate energy currency used to drive individual tasks. AMP is a lower-energy form that signals low energy and is not the primary energy source.

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