D Question 1 1 pts Which of the following processes leads to ATP production? Oxi
ID: 204960 • Letter: D
Question
D Question 1 1 pts Which of the following processes leads to ATP production? Oxidation of Pyruvate GYcolysis 0 Oxidative Phosphorylation O Citric Acid Cycle D Question 2 1 pts Which of the following are examples of redox reactions Protons diffusing down the ATP synthase O Passing of electrons in the electron transport chain. O Removal of hydrogens by a dehydrogenase enzyme O Substrate-level phosphorylation D Question 3 1 pts The following are examples of potential energy. O Proton gradient O Proton diffusion. O ATP O NADH O ATP symthase turning O GlucoseExplanation / Answer
oxidative phosphorylation
Oxidative phosphorylation. The NADH and FADH2 made in other steps deposit their electrons in the electron transport chain, turning back into their "empty" forms (NAD+ and FAD. As electrons move down the chain, energy is released and used to pump protons out of the matrix, forming a gradient. Protons flow back into the matrix through an enzyme called ATP synthase, making ATP. At the end of the electron transport chain, oxygen accepts electrons and takes up protons to form water.
An electron transport chain (ETC) is a series of complexes that transfer electrons from electron donors to electron acceptors via redox (both reduction and oxidation occurring simultaneously) reactions, and couples this electron transfer with the transfer of protons (H+ ions) across a membrane. This creates an electrochemical proton gradient that drives the synthesis of adenosine triphosphate (ATP), a molecule that stores energy chemically in the form of highly strained bonds.
Proton Gradient
The product of the electron transport chain. A higher concentration of protons outside the inner membrane of the mitochondria than inside the membrane is the driving force behind ATP synthesis.Related Questions
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