When a pair of electrons from NADH+ $H^{+}$ transported through respiratory ETS, results in the formation of

2 ATPs

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4 ATPs

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3 ATPs

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5 ATPs

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Solution

The correct option is C 3 ATPs
Glycolysis and Krebs cycle yield certain reduced coenzymes like NADH+H+ and FADH2.
ETS is metabolic pathway of electron transport that oxidizes these coenzymes to release energy from them.
NADH+H+ gets oxidized at Complex I of ETS and as the electrons are transferred to other Complexes, it creates a proton gradient for ATP production. One NADH+H+ yields 3 ATPs and one FADH2 yields 2 ATPs.
So the correct answer is '3 ATPs'.

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When a pair of electrons from NADH+H+ transported through respiratory ETS, results in the formation of

When a pair of electrons from NADH+ $H^{+}$ transported through respiratory ETS, results in the formation of