AP BIOLOGY

Detailed explanation-1: -Oxidative phosphorylation produces 24–28 ATP molecules from the Kreb’s cycle from one molecule of glucose converted into pyruvate.

Detailed explanation-2: -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-3: –Without oxygen, oxidative phosphorylation would not occur.-Chemiosmosis is the final step in oxidative phosphorylation. NADH and FADH2 deliver electrons to the electron transport chain during oxidative phosphorylation. Without oxygen, oxidative phosphorylation would not occur.

Detailed explanation-4: -It is used in electron transport chain, electron transport chain to form at p, to form at p as a part of to form at p as a part of 4 as a part of process of ox phosph as a part of process of oxidative phosphorylation. So the correct answer is n, a d h and f, a d h: 2.