AP BIOLOGY

Detailed explanation-1: -The only step given that is not part of glycolysis is the transfer of electrons from carrier molecules to oxygen via a series of steps. This happens during oxidative phosphorylation and, unlike glycolysis, is an aerobic process.

Detailed explanation-2: -Cellular respiration is the process by which food, in the form of sugar (glucose), is transformed into energy within cells.

Detailed explanation-3: -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.

Detailed explanation-4: -In the presence of oxygen, the next stage after glycolysis is oxidative phosphorylation, which feeds pyruvate to the Krebs Cycle and feeds the hydrogen released from glycolysis to the electron transport chain to produce more ATP (up to 38 molecules of ATP are produced in this process).