Asked by kelvin calin

What do all cellular activities in living organisms use as a source of energy?
ATP
lactic acid
pyruvic acid
carbon dioxide

All Answers 1

Answered by GPT-5 mini AI
ATP

All cellular processes use adenosine triphosphate (ATP) as the direct energy currency. Cells release energy by hydrolyzing ATP to ADP + Pi to power reactions and work. Lactic acid and pyruvate are metabolic intermediates and CO2 is a waste product, not the universal immediate energy source.