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Using this information describe one contribution of each of the following to ATP synthesis:

a. Catabolism of glucose in glycolysis and pyruvate oxidation.


b. Oxidation of intermediates in the Kreb's cycle


c. Formation of a proton gradient by the electron transport chain


Sagot :

a. Catabolism of glucose in glycolysis and pyruvate oxidation - Produces NADH that is used in the ETC.

b. Oxidation of intermediates in the Krebs Cycle - Produces NADH or FADH2 for use in the ETC.

c. Formation of a proton gradient by the electron transport chain- The flow of protons through membrane bound ATP synthase generates ATP

What is ETC ?

The electron transport chain (ETC) and chemiosmosis are the two processes that make up oxidative phosphorylation. The ETC is made up of a group of proteins that are affixed to the inner mitochondrial membrane and organic molecules that allow electrons to pass through and release energy through a series of redox processes.

An electron transport chain (ETC) is a collection of protein complexes and other molecules that associate protons (H+ ions) with the movement of electrons from electron donors to electron acceptors through redox processes (both reduction and oxidation occur simultaneously).

To know more about ETC you may visit:

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