Final answer:
Cellular respiration is the process by which a cell transfers energy from glucose to ATP, a more usable form of energy. It involves converting carbohydrates and oxygen into carbon dioxide and water.
Step-by-step explanation:
Cellular respiration describes a set of chemical reactions that together convert carbohydrates and oxygen into carbon dioxide and water. Through this process, a cell transfers energy from glucose to a more usable form of energy called ATP. This process is essential for providing energy to the cell to perform various functions.