What is the result of ATP breakdown in body cells?

Prepare for the PDHPE Higher School Certificate (HSC) CORE 2 Exam. Study with detailed multiple choice questions, each featuring hints and explanations. Boost your readiness and confidence for the test!

The breakdown of ATP (adenosine triphosphate) in body cells results in the formation of adenosine diphosphate (ADP) and energy. ATP is often referred to as the energy currency of the cell, as it provides the energy necessary for various biological processes, including muscle contraction, nerve impulse propagation, and biochemical reactions.

When ATP is broken down, one of its phosphate groups is removed through a hydrolysis reaction. This reaction releases a significant amount of energy, which can then be harnessed by the cell to perform work. The remaining molecule is ADP, which can be recycled back into ATP through cellular respiration processes, such as oxidative phosphorylation or substrate-level phosphorylation, allowing cells to sustain their energy needs continuously.

In contrast, the other options refer to different metabolic processes. Creatine phosphate serves as a quick energy source during high-intensity exercise but is not a direct result of ATP breakdown. Glucose and oxygen are involved in the process of cellular respiration but are not products of ATP breakdown. Fatty acids and glycerol are components of triglycerides and also relate to energy metabolism but are not linked to ATP breakdown directly.

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