Select the true statements about the electron transport chain.

a) In the electron transport chain, a series of reactions moves electrons through carriers.
b) The products of the electron transport chain are H2O and either NAD or FAD.
c) The electron transport chain operates independently of other metabolic processes.
d) Coenzyme A is a component of the electron transport chain.
e) The electron transport chain is a series of oxidation-reduction reactions that occur in the inner mitochondrial membrane.

The correct answers are options a) "In the electron transport chain, a series of reactions moves electrons through carriers", b) "The products of the electron transport chain are H2O and either NAD or FAD" and e) "The electron transport chain is a series of oxidation-reduction reactions that occur in the inner mitochondrial membrane".

Explanation:

The electron transport chain is a series of redox reactions that make possible the transference of electrons along different carriers. These reactions take place in the inner mitochondrial membrane, with the main function of producing ATP by a proton pump that creates a proton gradient across the membrane. In addition to ATP, the products of the electron transport chain are H2O and either NAD or FAD, regenerating the NAD and FAD to be used in the citric acid cycle.

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