AP BIOLOGY

Detailed explanation-1: -Its important to note that oxygen must be present for oxidative phosphorylation to occur. Water is formed as oxygen receives the electrons from protein complex 4, and combines with protons on the inside of the cell.

Detailed explanation-2: -Answer. Oxidative phosphorylation is the final stage of cellular respiration. Oxidative phosphorylation is an aerobic stage, which means it requires oxygen.

Detailed explanation-3: -During oxidative phosphorylation, electrons derived from NADH and FADH2 combine with O2, and the energy released from these oxidation/ reduction reactions is used to drive the synthesis of ATP from ADP.

Detailed explanation-4: -Which of the following occurs during oxidative phosphorylation?-Protons (H+) are transferred into the intermembrane space as electrons move through the electron transport chain.

Detailed explanation-5: -ATP formation happens in the electron transport chain via oxidative phosphorylation and this process is catalyzed by ATP synthase. Oxygen is necessary for the oxidative phosphorylation step and synthesizes ATP molecules.