Respiration Releases Energy

Cellular respiration is a chemical reaction that occurs inside cells, where glucose and oxygen atoms are rearranged to form carbon dioxide and water. This process is crucial because it releases the energy that was holding the glucose molecule together, allowing cells to capture and use that energy. Cells depend on this energy to perform essential functions like growing, repairing, and moving.

The inputs of cellular respiration are glucose and oxygen, which enter the cell and undergo a chemical reaction. The outputs are carbon dioxide, water, and released energy. The energy freed during this process is what the cell uses to power its life functions.

During cellular respiration, the chemical bonds holding the glucose molecule together are broken and rearranged. This rearrangement releases the energy that was stored in those bonds. The cell then captures this released energy to carry out functions such as growth, repair, and movement.

Cellular respiration is covered in Chapter 3 of Amplify Science California Grade 6. In this chapter, students learn how glucose and oxygen are transformed into carbon dioxide and water inside the cell. The key concept is that this chemical reaction releases energy that powers all cell functions.