AP BIOLOGY

Detailed explanation-1: -In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts. The three stages of aerobic cellular respiration are glycolysis (an anaerobic process), the Krebs cycle, and oxidative phosphorylation.

Detailed explanation-2: -The different stages of aerobic respiration are: Glycolysis. Formation of acetyl coenzyme A. Citric acid cycle.

Detailed explanation-3: -However, your body must break down the glucose into ATP, or cellular energy, through a process called glycolysis. If oxygen is available, glycolysis is followed by two processes in the mitochondria–the Krebs cycle and oxidative phosphorylation, respectively–that further increase ATP yield.

Detailed explanation-4: -Glycolysis occurs in both aerobic and anaerobic states. In aerobic conditions, pyruvate enters the citric acid cycle and undergoes oxidative phosphorylation leading to the net production of 32 ATP molecules. In anaerobic conditions, pyruvate converts to lactate through anaerobic glycolysis.

Detailed explanation-5: -Summary. Cellular respiration always begins with glycolysis, which ca n occur either in the absence or presence of oxygen. Cellular respiration that proceeds in the absence of oxygen is anaerobic respiration. Cellular respiration that proceeds in the presence of oxygen is aerobic respiration.