The complete conversion of sucrose into CO2 and water in the presence of oxygen with the release of energy is called [A] Aerobic respiration. Aerobic respiration is a cellular process that occurs in the presence of oxygen, involving the breakdown of organic molecules such as sucrose (a disaccharide) into carbon dioxide (CO2) and water (H2O) while releasing energy in the form of ATP (adenosine triphosphate).
This process consists of multiple stages, including glycolysis, the Krebs cycle (also known as the citric acid cycle), and oxidative phosphorylation, which occurs in the mitochondria. Aerobic respiration is highly efficient, producing a large amount of ATP per molecule of sucrose compared to anaerobic respiration. It is the primary energy-generating process in most eukaryotic cells, providing the necessary energy for cellular functions and metabolic activities.