What is the purpose of cellular respiration?

The purpose of cellular respiration is to break down glucose and convert it into ATP, which is the main energy currency of the cell. During cellular respiration, glucose is oxidized, and the energy released from its chemical bonds is harnessed to produce ATP through a series of biochemical pathways, including glycolysis, the citric acid cycle, and oxidative phosphorylation.

In essence, this process allows cells to convert stored energy in glucose into a usable form (ATP) that powers various cellular functions and activities necessary for life. The conversion of glucose into ATP is crucial for maintaining cellular processes, including growth, repair, and maintenance of homeostasis.