Question

Which multiprotein complex in the electron transport chain is responsible for reducing molecular oxygen? (a) complex I (NADH-ubiquinone oxidoreductase) (b) complex II (succinate-ubiquinone reductase) (c) complex III (ubiquinonecytochrome coxidoreductase) (d) complex IV (cytochrome coxidase) (e) complex V (ATP synthase)

Name: Problem 12, Chapter 7: Biology
Uploaded: 2021-12-14T15:15:20-08:00
Duration: 45 s
Channel: Hunza Gilgit
Description: Which multiprotein complex in the electron transport chain is responsible for reducing molecular oxygen? (a) complex I (NADH-ubiquinone oxidoreductase) (b) complex II (succinate-ubiquinone reductase) (c) complex III (ubiquinonecytochrome coxidoreductase) (d) complex IV (cytochrome coxidase) (e) complex V (ATP synthase)

   Which multiprotein complex in the electron transport chain is responsible for reducing molecular oxygen?
(a) complex I (NADH-ubiquinone oxidoreductase) (b) complex II (succinate-ubiquinone reductase)
(c) complex III (ubiquinonecytochrome coxidoreductase)
(d) complex IV (cytochrome coxidase) (e) complex V (ATP synthase)

Biology

Eldra Solomon, Linda… 7th Edition

Chapter 7, Problem 12

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Solved by Expert Hunza Gilgit

12/14/2021

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This process also contributes to the creation of a proton gradient that drives ATP synthesis. Show more…

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Which multiprotein complex in the electron transport chain is responsible for reducing molecular oxygen? (a) complex I (NADH-ubiquinone oxidoreductase) (b) complex II (succinate-ubiquinone reductase) (c) complex III (ubiquinonecytochrome coxidoreductase) (d) complex IV (cytochrome coxidase) (e) complex V (ATP synthase)

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Key Concepts

Electron Transport Chain

The electron transport chain is a series of protein complexes and other molecules embedded in the inner mitochondrial membrane that facilitate the transfer of electrons from electron donors to electron acceptors. This process creates a proton gradient across the membrane, which is then used to synthesize ATP, the primary energy currency in cells.

Cytochrome c Oxidase (Complex IV)

Cytochrome c oxidase, also known as Complex IV, is the terminal enzyme of the electron transport chain. It catalyzes the reduction of molecular oxygen to water by accepting electrons from cytochrome c, and in doing so, it helps maintain the electron flow and contributes to the proton gradient necessary for ATP production.

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