What part of the electron transport chain is responsible for the greatest contribution to oxidative stress within a cell? How do cells mitigate the effects of oxidative stress?
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What part of the electron transport chain is responsible for the greatest contribution to oxidative stress within a cell? How do cells mitigate the effects of oxidative stress?
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- Both prokaryotic and eukaryotic organisms carry out some form of glycolysis. How does ha fact support or not support the assertion that glycolysis is one of the oldest metabolic pathways?Which reaction in cellular respiration produces energy through substrate-level phosphorylation? What molecule is the final electron acceptor in the electron transport chain in cellular respiration? What are produced from 1 Glucose molecule during cellular respiration? How many ATP molecules are produced directly during the citric acid cycle?How many ATP will be produced in an oxidative level phosphorylation of a molecule of glucose in a eukaryotic cell?
- In terms of an electron-transport chain, what is the difference between a reduced carrier and an oxidized carrier?What compounds are the immediate source of the "high energy electrons" that enter the electron transport system of mitochondria? Where do these electron-donating compounds gain their electrons? What type of compounds are these electron-donating compounds?Why does glycolysis require ATP investment on a thermodynamic and molecular level?
- How many ATP are produced when 3 moles of FADH2 enter the electron transport chain?Is there a fundamental difference between the one- and two-electron reactions in the electron transport chain?Since no molecular oxygen participates in the citric acid cycle, the steps in which acetyl groups are oxidized to CO2 involve removal of hydride ions and hydrogen ions. What is the acceptor of hydride ions? What is the acceptor of hydrogen ions?
- The electron transport chain contains four large protein complexes: the NADH-Q reductase complex, succinate dehydrogenase, the cytochrome c reductase complex, and the cytochrome c oxidase complex. What do they have in common?What citric acid cycle enzyme is also a component of the electron-transport chain?Maximal production of ATP from glucose involves the reactions of glycolysis, the citric acid cycle, and the electron transport chain. Which of these reactions requires O2, and why? Which, in certain organisms or physiological conditions, can proceed in the absence of O2?
