Why is the Krebs cycle considered part of aerobic metabolism, even though O2 does not appear in any of its catalytic reaction?
Q: The citric acid cycle is frequently described as the major pathway of aerobic catabolism, which…
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Q: What is beta-oxidation? Explain how it results in ATP production.
A: Fatty acids are the building blocks of fat in both our bodies and our diets. Fats are broken down…
Q: Where does succinate dehydrogenase and potassium cyanide "fit into" the Krebs Cycle
A: The Krebs cycle is also known as citric acid cycle (CAC) or tricarboxylic acid cycle. It is a…
Q: How is succinate dehydrogenase unique compared with the other enzymes in the citric acid cycle?
A: The citric acid cycle is a catabolic process. It is also known as the TCA cycle or Krebs cycle. It…
Q: Why does it make metabolic sense for ADP and GDP to inhibit ribose phosphate pyrophosphokinase?
A: Ribose phosphate phosphokinase or ribose-phosphate pyrophosphokinase (RPPK) is a phosphoribosyl…
Q: How many carbons from 13 original glucose molecules enter the Krebs cycle in the absence of oxygen?
A: Question - How many carbons from 13 original glucose molecules enter the Krebs cycle in the absence…
Q: How does cellular respiration benefit life on earth if it is a catabolic process?
A: Cellular respiration refers to intracellular oxidation of food to form ATP and reducing powers. It…
Q: What type of enzyme is phosphofructokinase? And why is it in that category?
A: Phosphofructokinase is one of the most important regulatory enzymes of the glycolysis. It is an…
Q: The intermediates of glycolysis are phosphorylated, but those of the citric acid cycle are not.…
A: The citric acid cycle has several enzymes that are used in a chemical reaction. It is a part of…
Q: What is the energy rich compound produced in Krebs Cycle or Citric acid cycle?
A: In the matrix of the mitochondria, the citric acid cycle takes place. Except for succinate…
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: Why is pyruvate not oxidized to CO2 and H2O underanaerobic conditions?
A: Cellular respiration occurs in 3 stages namely pyruvate oxidation, the tricarboxylic acid cycle, and…
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: Why does the Krebs cycle operate only under aerobic conditionseven though it does not use molecular…
A: Respiration is the important chemical process that occurs in all living organisms including animals…
Q: The coenzymes NAD and FAD can “shuttle” hydrogens from one reaction to another. How does this…
A: Introduction: Coenzymes are organic compounds required by many enzymes for catalytic activity. They…
Q: What is the main purpose and importance of pyruvate oxidation in the cellular respiration?
A: Pyruvate is created by glycolysis within the cytoplasm, yet pyruvate oxidation happens in the…
Q: What is beta-oxidation? Explain how it results in ATPproduction.
A: Fatty acids are considered to be highly efficient in energy production in the body. 50 to 70% of the…
Q: What is an oxidation-reduction reaction and why are such reactions considered so important in…
A: Energy production inside a cell includes many coordinated chemical pathways. The greater part of…
Q: How are enzymes in Citric Acid Cycle regulated? What are these enzymes and their inhibitors?
A: Cellular metabolism is the set of all reactions that are involved in producing energy in the body.…
Q: What is the function of NAD+ in the pyruvate dehydrogenase complex?
A: Pyruvate is formed from glycolysis. This pyruvate gets converted to acetyl CoA by oxidative…
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: How many moles of ATP are synthesized by adding stearate to TCA through B-oxidation? Why is that?…
A: From the Beta oxidation process: The P/O ratios, which give the number of ATP produced per molecule,…
Q: Why can it be said that each glucose molecule runs the Krebs cycle twice?
A: The process of exchange of gases through different modes, like air or water, for their survival is…
Q: Why is this reaction crucial to ATP synthesis in glycolysis?
A: Ans: Glycolysis: It is the process in which glucose is broken down to produce pyruvate and upon…
Q: Why is the TCA cycle considered to be the central pathway in the energy metabolism of a cell?
A: The citric acid cycle serves a number of vital activities in addition to supplying energy from the…
Q: What is the significance of acetyl-CoA as a "strategic intermediate" in respiration?
A: The Krebs cycle is a metabolic mechanism that aids in the conversion of the pyruvate molecule to…
Q: What would be the effect of the inhibition on other intermediates in the citric acid cycle?
A: Citric acid cycle occurs in the matrix of mitochondria (cytosol in prokaryotes). The net result of…
Q: Why is pyruvate not oxidized to-3 CO2 and H2O under anaerobic * .?conditions
A: Pyruvate oxidation is one of the four stages in cellular respiration. During pyruvate oxidation…
Q: Which of the following statements is/are TRUE for the Krebs' cycle? Reaction 1: condensation of…
A: Krebs cycle is the typical process for fully oxidizing proteins, lipids, and carbohydrates as they…
Q: If oxygen is not available for the electron transport chain, how is the Krebs cycle affected? What…
A: Aerobic respiration takes place in the mitochondria and requires oxygen and glucose, and produces…
Q: Why is the process of activation a useful strategy in metabolism?
A: Metabolism is the process, which involves the processing of the nutrients in order to acquire energy…
Q: What what is an oxidation-reduction process, and why are they so vital in cellular metabolism?
A: All cells function as biochemical factories. Within living cell, biomolecules are constantly being…
Q: Why is the TCA cycle is important for both anabolic and catabolic reactions?
A: After each turn of the TCA cycle, oxaloacetate is regenerated and can combine with another…
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: Where in mitochondria does the process called respiratory chain occur? Which are the products of the…
A: Cellular respiration is a process in which the complex organic molecules are oxidized to generate…
Q: How does the pyruvate dehydrogenase reaction control the citric acid cycle?
A: The conversion of pyruvate to acetyl CoA is catalyzed by the pyruvate dehydrogenase complex. This…
Q: What coenzymes are required by the pyruvate dehydrogenase complex? What are their roles?
A: A coenzyme is a non-protein component of an enzyme that is required for the enzymatic reaction to…
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: Why is acetyl-CoA considered a “strategic intermediate” in respiration?
A: Respiration is the process of oxidation of nutrients to retrieve the energy stored in them.
Q: Why is it reasonable for excess NADH to negatively regulate the citric acid cycle?
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Q: How many NADH and how many FADH2 molecules are formed in the citric acid cycle?
A: Citric acid cycle : It is a series of chemical reactions used by all aerobic organisms to release…
Q: How many ATP are produced in the Krebs cycle?
A: The cells are the basic building blocks of the living system. It consists of many internal…
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: Why most of the clinical features of the diseases Krebs Cycle inborn errors ( a- ketoglutarate…
A: Krebs cycle : This pathway plays an important role in the living cell metabolism also known as…
Q: What are the substrates and products of the net reaction corresponding to one turn of the citric…
A: Introduction: The TCA cycle fundamentally includes the association of a two-carbon acetyl CoA with…
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: Does Pyruvate Dehydrogenase Complex have coenzymes and Allosteric regulation?
A: Pyruvate dehydrogenase complex (PDC) is a three-enzyme complex that decarboxylates pyruvate into…
Why is the Krebs cycle considered part of aerobic
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Solved in 4 steps
- Based on your knowledge of the structure of NAD+ and an assumption that coenzyme dissociation is the rate limiting step of the alcohol dehydrogenase mechanism, hypothesize why a N249W mutation at the coenzyme binding site would increase the rate of catalysis.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?Why can it be said that each glucose molecule runs the Krebs cycle twice?
- Why does the Krebs cycle operate only under aerobic conditionseven though it does not use molecular oxygen in any of its reactions?Why is it advantageous for citrate, the product of Reaction 1 of the citric acid cycle, to inhibit phosphofructokinase, which catalyzes the third reaction of glycolysis?why is the citric acid cycle is located in close cellular proximity to the electron transport chain?
- What is metabolism and metabolic pathway? Why glycolysis, b-oxidation of fatty acids and protein metabolism are the major pathways of Krebs Cycle? Explain comprehensibly.Why is the citric acid cycle considered part of aerobic metabolism, even though molecular oxygen does not appear in any reactionWhy does NADH generated in the cytosol in different tissues produce two different amounts of ATP at the electron transport chain?
