In cellular respiration, a product is formed as a result of the release of energy:

Correct answer: A. ATP

  • A. ATP
  • B. Oxygen
  • C. NADH
  • D. Glucose

Explanation

In cellular respiration, the primary product formed as a result of the release of energy is adenosine triphosphate (ATP). During this process, glucose is gradually broken down through glycolysis, the Krebs cycle, and the electron transport chain, releasing energy stored in its chemical bonds. This energy is captured by phosphorylating adenosine diphosphate (ADP) to form ATP, which acts as the universal energy currency of the cell. Along with ATP, by-products such as carbon dioxide and water are also produced, but the main purpose of cellular respiration is to convert the chemical energy in nutrients into a readily usable form-ATP-to power various cellular processes like muscle contraction, active transport, and biosynthesis.

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About Bioenergetics

Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.

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