Paracoccus denitrificans
... as the result of electron transport driven by the oxidation of a chemical energy source Phosphorylation - addition phosphate NADH – oxidized, electron transport chain is oxidized ...
... as the result of electron transport driven by the oxidation of a chemical energy source Phosphorylation - addition phosphate NADH – oxidized, electron transport chain is oxidized ...
NME2.31 - Energy Production
... Acetyl-CoA is linked with oxaloacetate to form citrate (a 6-carbon molecule) Citrate is converted to isocitrate Isocitrate is oxidised to α-ketoglutarate generating CO2 and NADH α-ketoglutarate is oxidised to succinyl-CoA generating CO2 and NADH Succinyl-CoA is converted to succinate generating GTP ...
... Acetyl-CoA is linked with oxaloacetate to form citrate (a 6-carbon molecule) Citrate is converted to isocitrate Isocitrate is oxidised to α-ketoglutarate generating CO2 and NADH α-ketoglutarate is oxidised to succinyl-CoA generating CO2 and NADH Succinyl-CoA is converted to succinate generating GTP ...
Substrate and oxidative phosphorylation
... ATP is synthesized when protons flow back to the mitochondrial matrix through an enzyme complex ATP synthase. The oxidation of fuels and the phosphorylation of ADP are coupled by a proton gradient across the inner mitochondrial membrane. ...
... ATP is synthesized when protons flow back to the mitochondrial matrix through an enzyme complex ATP synthase. The oxidation of fuels and the phosphorylation of ADP are coupled by a proton gradient across the inner mitochondrial membrane. ...
Chapter 14 (Part 1)
... • Electrons from cyt c are used in a fourelectron reduction of O2 to produce 2H2O • Oxygen is thus the terminal acceptor of electrons in the electron transport pathway the end! • Cytochrome c oxidase utilizes 2 hemes (a and a3) and 2 copper sites • Complex IV also transports H+ (2 protons) ...
... • Electrons from cyt c are used in a fourelectron reduction of O2 to produce 2H2O • Oxygen is thus the terminal acceptor of electrons in the electron transport pathway the end! • Cytochrome c oxidase utilizes 2 hemes (a and a3) and 2 copper sites • Complex IV also transports H+ (2 protons) ...
Transport of molecules into a bacterial cell
... – If reduced NAD molecules are “poker chips”, they contain energy which needs to be “cashed in” to make ATP. – In order for glycolysis and Krebs Cycle to continue, NAD that gets reduced to NADH must get re-oxidized to NAD. – What is the greediest electron hog we know? Molecular oxygen. – In Electron ...
... – If reduced NAD molecules are “poker chips”, they contain energy which needs to be “cashed in” to make ATP. – In order for glycolysis and Krebs Cycle to continue, NAD that gets reduced to NADH must get re-oxidized to NAD. – What is the greediest electron hog we know? Molecular oxygen. – In Electron ...
Principles of Biochemistry 4/e
... Intermembrane space is where the protons are transported during the membrane-associated electron transport process ...
... Intermembrane space is where the protons are transported during the membrane-associated electron transport process ...
METABOLIC COMPARTMENTATION
... • Reduced coenzyme (NADH, 2.5 - 3 ATP or FADH2, 1.5 - 2 ATP) • The complete oxidation of glucose to carbon dioxide directly yields 2 ATP, 2 GTP, 10 NADH and 2 FADH. Depending on the assumptions used with respect to electron shuttle and ATP yield this could be the equivalent of 30 to 38 ATP molecules ...
... • Reduced coenzyme (NADH, 2.5 - 3 ATP or FADH2, 1.5 - 2 ATP) • The complete oxidation of glucose to carbon dioxide directly yields 2 ATP, 2 GTP, 10 NADH and 2 FADH. Depending on the assumptions used with respect to electron shuttle and ATP yield this could be the equivalent of 30 to 38 ATP molecules ...
p134
... (b) Pyruvate oxidation and the Krebs cycle occur in the mitochondrial matrix. (c) The electron transport chain and ATP synthesis occur in the inner mitochondrial membrane. 3. (a) Ubiquinone (Q) is an electron carrier. As part of the electron transport chain, it carries electrons from NADH dehydrogen ...
... (b) Pyruvate oxidation and the Krebs cycle occur in the mitochondrial matrix. (c) The electron transport chain and ATP synthesis occur in the inner mitochondrial membrane. 3. (a) Ubiquinone (Q) is an electron carrier. As part of the electron transport chain, it carries electrons from NADH dehydrogen ...
Cell Respiration - Oxidative Phosphorylation Gibb`s Free Energy PPT
... Protein complex of electron carriers ...
... Protein complex of electron carriers ...
Cellular Respiration Part IV: Oxidative Phosphorylation
... Protein complex of electron carriers ...
... Protein complex of electron carriers ...
Oxidative Phosphorylation - Study in Universal Science College
... • The components of the respiratory chain are all present in the inner mitochondrial membrane as four protein – lipid respiratory chain complexes • Cytochrome c is the only soluble cytochrome & together with ubiquinone seems to be a mobile component connecting the more fixed complexes In simple out ...
... • The components of the respiratory chain are all present in the inner mitochondrial membrane as four protein – lipid respiratory chain complexes • Cytochrome c is the only soluble cytochrome & together with ubiquinone seems to be a mobile component connecting the more fixed complexes In simple out ...
Bio102 Problems
... 17. We can isolate mitochondria from liver cells and measure the rate at which electron transport proceeds as well as their ability to make ATP. Then we can modify their phospholipids and observe the following effects: 17A. If we modify the phospholipids in the mitochondria so that they are less uns ...
... 17. We can isolate mitochondria from liver cells and measure the rate at which electron transport proceeds as well as their ability to make ATP. Then we can modify their phospholipids and observe the following effects: 17A. If we modify the phospholipids in the mitochondria so that they are less uns ...
Cellular Respiration 2
... Many electron acceptors used released energy to pump an H+ proton into the intermembrane space – Gradient of H+ is formed outside of cristaes ...
... Many electron acceptors used released energy to pump an H+ proton into the intermembrane space – Gradient of H+ is formed outside of cristaes ...
Document
... CoA esters and oxidized by the -oxidation pathway Fatty acids degraded to acetylCoA TCA cycle ...
... CoA esters and oxidized by the -oxidation pathway Fatty acids degraded to acetylCoA TCA cycle ...
Recitation 6 The path of electron flow in photosynthesis from initial
... As we have seen in class, there are several similarities between oxidative phosphorylation in mitochondria and photosynthesis. For example, both involved a membrane-bound electron transport system, and the mechanisms of ATP production via proton gradients are similar. Electron transport in mitochond ...
... As we have seen in class, there are several similarities between oxidative phosphorylation in mitochondria and photosynthesis. For example, both involved a membrane-bound electron transport system, and the mechanisms of ATP production via proton gradients are similar. Electron transport in mitochond ...
Catabolism
... Anaerobic respiration using molecules other than oxygen as exogenous electron acceptors yields large amount of energy, primarily by electron transport activity ...
... Anaerobic respiration using molecules other than oxygen as exogenous electron acceptors yields large amount of energy, primarily by electron transport activity ...
Mitochondria: Energy Conversion
... complex; a collection point for electrons from FMN- and FAD-linked dehydrogenases ...
... complex; a collection point for electrons from FMN- and FAD-linked dehydrogenases ...
Chapter 8 Notes – Energy and Metabolism
... Coenzyme Q by NADH dehydrogenase, and the protons are transferred across the membrane to the intermembrane space. Coenzyme Q carries the electrons to the cytochrome bci complex. As the electrons move from the bci to cytochrome c, more protons are carried from the inside to the outside of the membr ...
... Coenzyme Q by NADH dehydrogenase, and the protons are transferred across the membrane to the intermembrane space. Coenzyme Q carries the electrons to the cytochrome bci complex. As the electrons move from the bci to cytochrome c, more protons are carried from the inside to the outside of the membr ...
Oxidative Phosphorylation and Electron Transport Chain(ETC)
... a proton-impermeable membrane, conserving the free energy of fuel oxidation as a transmembrane electrochemical potential (p. ...
... a proton-impermeable membrane, conserving the free energy of fuel oxidation as a transmembrane electrochemical potential (p. ...
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.