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Oxygen - CriticalCareMedicine
Oxygen - CriticalCareMedicine

... result of series of stepwise reactions that couple the oxidation of substrates to oxygen with the phosphorylation of ATP. ...
Fundamentals of Biochemistry 2/e
Fundamentals of Biochemistry 2/e

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... the movement of electrons along the electron transport chain. + in the  This high concentration of H intermembranal space sets up facilitated diffusion along the F1 complex (ATP synthase)  The energy from this diffusion process allows ADP to gain a phosphate to form ATP. ...
adjusting the conditions inside when the outside conditions change
adjusting the conditions inside when the outside conditions change

... 8. Where does glycolysis occur? (be specific) ______________ 9. Where does the Krebs Cycle occur? (be specific) ________ 10. Where does the Electron Transport Chain occur? (be specific) _____________________ 11. Pyruvate is made in glycolysis and is shipped to the ___________________ for the Krebs c ...
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Derived copy of Bis2A 07.2 Fermentation

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... - PDH allosterically inhibited by acetyl CoA (E2 component) and NADH (E3 component) - NADH provides electrons for respiratory (electron transport) chain (oxidative phosphorylation) - enough ATP  NADH accumulates in mitochondrial matrix  shuts off E3 enzyme to prevent mitochondria from unnecessaril ...
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Citric Acid Cycle - University of California, Berkeley

... combined with ketone. Methyl carbon of acetylCoA attack the electron poor ketone carbon of oxaloacetate. You have to abstract a proton, so you produce a carbanion here. The carbanion will attack this oxaloacetate carbonyl carbon. To produce carbanion, the enzyme uses the general acid/base mechanism ...
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Cellular Respiration - Parkway C-2

... alcoholic and lactic acid), Krebs cycle, and electron transport chain. Respiration is a process of breaking down glucose in such a way that energy capture is maximized. When sugars are burned, all the energy is released at one time; however, if cells truly “burned” sugars, much of the energy contain ...
Lab Exercise 7 - Cellular Respiration
Lab Exercise 7 - Cellular Respiration

... Cellular respiration occurs in most cells of both plants and animals. Cells must continually obtain energy from the environment and use it to make adenosine triphosphate or ATP. ATP is used later in cellular work. Cells may extract energy from organic food molecules such as carbohydrates, fats, and ...
Bis2A 07.2 Fermentation
Bis2A 07.2 Fermentation

... During glycolysis NAD+ is reduced to NADH and glucose is oxidized to pyruvate. During this process the cells must regenerate NAD+ by a second redox reaction. In respiration, this occurs when NADH is used ...
Chapter 6-Photosynthesis
Chapter 6-Photosynthesis

... the stroma to combine with NADP and make NADPH. (2) Increasing the carbon dioxide concentration makes more of it available to enter the Calvin Cycle, thus accelerating photosynthesis. As the carbon dioxide levels rise still higher, the rate of photosynthesis begins to become limited by other compone ...
Mrs. Loyd Page 1 of 4 10/20/11  http
Mrs. Loyd Page 1 of 4 10/20/11 http

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Chap 7 Energy from Food
Chap 7 Energy from Food

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Electron transport chain



An electron transport chain (ETC) is a series of compounds that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons (H+ ions) across a membrane. This creates an electrochemical proton gradient that drives ATP synthesis, or the generation of chemical energy in the form of adenosine triphosphate (ATP). The final acceptor of electrons in the electron transport chain is molecular oxygen.Electron transport chains are used for extracting energy via redox reactions from sunlight in photosynthesis or, such as in the case of the oxidation of sugars, cellular respiration. In eukaryotes, an important electron transport chain is found in the inner mitochondrial membrane where it serves as the site of oxidative phosphorylation through the use of ATP synthase. It is also found in the thylakoid membrane of the chloroplast in photosynthetic eukaryotes. In bacteria, the electron transport chain is located in their cell membrane.In chloroplasts, light drives the conversion of water to oxygen and NADP+ to NADPH with transfer of H+ ions across chloroplast membranes. In mitochondria, it is the conversion of oxygen to water, NADH to NAD+ and succinate to fumarate that are required to generate the proton gradient. Electron transport chains are major sites of premature electron leakage to oxygen, generating superoxide and potentially resulting in increased oxidative stress.
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