Why does the Krebs cycle operate only under aerobic conditionseven though it does not use molecular oxygen in any of its reactions?

Q: What citric acid cycle enzyme is also a component of the electrontransport chain?

A: Glucose is catabolized to form two molecules of pyruvate via glycolysis. Glycolysis produces two ATP…

Q: Until the Krebs cycle, aerobic respiration can be described without mentioning oxygen, the chemical…

A: The cellular respiration is the process by which glucose is broken down and produce metabolic energy…

Q: How do the three active sites of ATP synthase respond to the flow of protons?

A: ATP synthase is a rotatory motor enzyme present in complex V. This ATP synthase utilizes the proton…

Q: Enzymes act by reducing the activation energy of areaction. Describe several ways in which this…

A: Enzymes are biomolecules which catalyzes the reactions so that reactions take less time to complete…

Q: Cytochrome oxidase and succinate-CoQ oxidoreductase are isolated from mitochondria and are incubated…

A: The metabolic pathway Kreb cycle is connected with the electron transport chain, in which the high…

Q: Why does metabolism not grind to a halt when an endergonic reaction occurs within a pathway?

A: The biological process that involves the conversion of absorbed food nutrients to energy by the…

Q: Question 53 Which of these is NOT true of the citric acid cycle?

A: Introduction The citric acid cycle is the final common oxidative pathway for carbohydrates, fats and…

Q: How many turns of the citric acid cycle are implicated in accounting for the net oxidation of one…

A: The citric acid cycle, which is found to be a part of cellular respiration, takes place inside the…

Q: The yeast cell Saccharomyces cerevisiae is moved from an environment containing oxygen to an…

A: Saccharomyces cerevisiae is yeast which belongs to the kingdom fungi. It is used in various…

Q: What would happen to the citric acid cycle if NADH and FADH2 were not reoxidized?

A: Citric acid cycle or TCA or Krebs cycle is the metabolic process in which the oxidation of acetyl…

Q: The electron transport chain contains four large protein complexes: the NADH-Q reductase complex,…

A: The electron transport chain moves electrons from electron benefactors to electron acceptors through…

Q: What is the oxidative phosphorylation coefficient? indicate the oxidative phosphorylation…

A: Oxidative phosphorylation is the reaction in which electrons gets transferred from NADH or FADH2,…

Q: To what main enzyme class do the enzymes that catalyze the following reaction belong?…

A: Introduction: Those substances that increase the pace of the reaction without undergoing any change…

Q: Why is the Krebs cycle considered part of aerobic metabolism, even though O2 does not appear in any…

A: Asked : Reason for kreb's cycle : part of aerobic metabolism

Q: What are the final energetic products of each round of the Krebs cycle? Where is most part of the…

A: Cellular respiration is the process by which the cells take the nutrients in the food and transform…

Q: Explain what an oxidation–reduction reaction is and why the breakdown ofglucose in the presence of…

A: A chemical reaction is a process where two or more substances react together to form new or…

Q: I am confused on the krebs cycle. What is the difference between a protien and an enzyme?

A: Krebs cycle: It is also known as the tricarboxylic acid(TCA). The citric acid cycle occurs in the…

Q: How many ATPs are produced by the respiratory chain from all the molecules od FADH2 formed from the…

A: One glucose molecule undergoes the process of aerobic respiration for its complete oxidation that…

Q: What happens in the electron transport chain and why is this process called chemiosmosis?

A: Metabolism is the arrangement of life-supporting synthetic responses in living beings. The three…

Q: What is the effect of dinitrophenol on ATP formation by mitochondria?

A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…

Q: Why do most enzyme reactions slow down at extremely high temperatures?

A: Enzymes are proteins that act as biological catalysts to accelerate chemical reactions inside the…

Q: What electron acceptors play a role in the citric acid cycle?

A: Citric acid cycle:          The Citric acid cycle also described as TCA cycle or the krebs cycle, in…

Q: Oxygen is not a reactant in the β oxidation of fatty acids. Can β oxidation occur under anaerobic…

A: Beta-oxidation is the metabolic process which involves multiple steps by which fatty acid molecules…

Q: What reaction(s) does the enzyme RubisCO carry out?

A: Photosynthesis is a process in which the green plants and algae obtain their nutrients using solar…

Q: What is the effect of adding cyanide to the DNOC-stimulated electron-transport chain?

A: The electron transport chain, abbreviated as ETC is a series of transfer of elections from one…

Q: Is there a fundamental difference between the one- and two-electron reactions in the electron…

A: The electron transport chain is a series of proteins and organic molecules found in the inner…

Q: Why do some reactions in metabolic pathways occur, even though the change in standard free energy is…

A: Metabolic pathways are defined as the set of chemical reactions occurring in the body. Metabolic…

Q: why is the citric acid cycle is located in close cellular proximity to the electron transport chain

A: In the process of cellular metabolism, glucose moiety is consumed by the cell to produce pyruvate.…

Q: What is required for the Krebs cycle to proceed?

A: Introduction The citric acid cycle (CAC) – also known as the TCA cycle (tricarboxylic acid cycle) or…

Q: Which reactions of the citric acid cycle transfer energy as FADH2?

A: FAD acts as coenzyme which accepts the electrons and protons get reduced to FADH2.

Q: Urea formation is energetically expensive, requiring theexpenditure of 4 mol of ATP per mole of urea…

A: The urea cycle is the process of synthesis of urea in many organisms in which highly toxic ammonia…

Q: Why is the enzyme-catalyzed introduction of carbon–carbon double bonds into fatty acids called an…

A: Beta-oxidation is a metabolic process by which fatty acids are broken to acetyl-CoA. It occurs by…

Q: If actively respiring mitochondria are exposed to an inhibitor of ATPADP translocase, the…

A: Introduction ATP-ADP translocase is a transport protein that acts as an antiporter of ATP and ADP.…

Q: in steps 3 and 5 of the citric acid cycle, the compounds are shortended by one carbon each time.…

A: The citric acid cycle is also known as the Krebs cycle. It is a series of chemical processes in the…

Q: How does the cost of storing glucose-6-phosphate (G6P) as glycogen differ from the answer you…

A: The cost of storing Glucose-6 phosphate as because glycogen in terms of ATP remains the same

Q: In what part of the cell does the citric acid cycle take place? Does this differ from the part of…

A: The citric acid cycle take place in the matrix of the mitochondria.

Q: Question attached

A: The Citric (CAC) acid cycle is the process, which helps to produce oxalo (OAA) acetate with the…

Q: The citric acid cycle operates only when O2 is present, yet O2 is not a substrate for the cycle.…

A: The citric acid cycle also referred to as the Krebs cycle or TCA (Tricarboxylic acid cycle) is a…

Q: Does oxidase, catalyzes the oxidation of molecular oxygen? True or False

A: Enzymes are biological catalysts that are proteins. Chemical reactions are sped up with catalysts.…

Q: Why does NADH generated in the cytosol in different tissues produce two different amounts of ATP at…

A: NADH generated in the cytosol in different tissues produce two different amounts of ATP at the…

Q: In the citric acid cycle, the starting molecule is and the output molecule is

A: Citric acid cycle  Citric acid cycle or Kreb's cycle or TCA cycle is a series of reactions that…

Q: In terms of an electron-transport chain, what is the difference between a reduced carrier and an…

A: Electron transport chain is a series of electron carrier reactions which was embedded in the inner…

Q: What is the pathway called froman alternative pathway branching from glycolysis that is used when…

A: Glycolysis is a catabolic pathway in which glucose will be oxidized to 2 molecules of pyruvate.…

Q: Why do the cytochrome electron-transfer processes have different standard reduction potentials,…

A: The propensity of chemical species to absorb electrons from the electrode or lose electrons from the…

Q: What happens in the oxidative phosphorylation cycle of cellular respiration?

A: Oxidative phosphorylation requires oxygen. Oxygen functions as electron acceptor.

Q: What happens with NADH under aerobic  versus anaerobic  conditions?

A: Cellular respiration can occur in the presence or absence of oxygen.

Q: To what extent can metabolic pathways beconsidered reversible? Why?

A: Metabolic pathways are the series of chemical reaction that occurs within the cells. these are of…