Question

In the last stage of cellular respiration, oxidative phosphorylation, all of the reduced electron carriers produced in the previous stages are oxidized by oxygen via the electron transport chain. The energy from this oxidation is stored in a form that is used by most other energy-requiring reactions in cells. From the following compounds involved in cellular respiration, choose those that are the net inputs and net outputs of oxidative phosphorylation.

Answer 1

Explanation:

ADP, O2, NADH

Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’s cycle via the oxidization of pyruvate( through the process of glycolysis).

Oxidative phosphorylation describes a process in which the NADH and FADH2 made in previous steps of respiration. The process give up electrons in the electron transport chain these are converted it to their previous forms, NADH+ and FAD. electrons continue to move down the chain the energy they release is used in pumping protons out of the matrix of the mitochondria this forms a gradient where there is a differential in the number of protons on either side of the membrane the protons  re-enter the matrix through the enzyme ATP synthase, which makes the energy storage molecules of ATP from the reduction of ADP.  At the end of the ET see molecules of oxygen accept electrons and protons form molecules of water.

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