Which reactions of the TCA cycle generate NADH? 1. a-ketoglutarate dehydrogenase 2. Citrate synthase 3. Isocitrate dehydrogenase 4. Malate dehydrogenase 5. Succinate dehydrogenase
Q: Consider the Kreb's Cycle below. Fill in the blanks using the pool of answers below. Acetyl-SCOA…
A: The cells require energy to perform various functions. The energy in the cells is stored in the form…
Q: If 14CO2 (radioactive carbon) were incorporated into the TCA cycle via the Pyruvate Carboxylase…
A: Oxaloacetate, Citric Acid (or citrate), Isocitrate and alpha ketoglutarate will have the radioactive…
Q: Discuss the Anaplerotic reactions of TCA cycle.
A: The term amphibolic is used to describe a biochemical mechanism that includes both catabolism and…
Q: Nonenzyme-bound FAD is a stronger oxidizing agent than NAD+ . How, then, can NAD+ oxidize the…
A: Pyruvate dehydrogenase complex is a multienzyme complex. It requires five cofactors, namely-TPP,…
Q: Acetyl CoA 1. Citric Acid 9. Malate dehydrogenase NADH NAD Isocitrate 8. NAD 1- Isocitrate Fumarase…
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Q: A patient has hemolytic anemia. In describing her recent activities, she mentioned that she ate fava…
A: There is a direct link between the G6PD deficiency and hemolytic anemia in the patients.
Q: NADH is generated by all of the following Krebs cycle enzymes except: alpha-ketoglutarate…
A: Citric acid cycle, also known as Krebs cycle includes a series of chemical reactions used by…
Q: After the formation of pyruvic acid it must be converted into Acetyl CoA to enter the Krebs cycle…
A: Cellular respiration involves breakdown of glucose through a series of catabolic steps in the cell…
Q: Helicobacter pylori, which causes gastric ulcers, does not operate a citric acid cycle but contains…
A: Helicobacter pylori is the bacteria which causes gastric ulcers. In H.Pylori, conventional citric…
Q: NADH is produced by which of the following glycolytic (Embden-Meyerhof) enzymes? succinate…
A: Cellular respiration is a series of metabolic reactions and processes carried out in the cells of…
Q: Which one of the following enzymes of glycolysis is regulated via product inhibition? O…
A: Product inhibition is the type of enzyme inhibition where the product of an enzymatic reaction…
Q: CHOOSE THE CORRECT LETTER 1.Which of the following enzymes catalyze the reaction involved in the…
A: The TCA cycle or Kreb's cycle occurs only in the presence of oxygen inside the mitochondrial matrix.…
Q: Which of the following enzymes does NOT take part in the TCA cycle? Succinate dehydrogenase.…
A: All cells require energy (ATP) to carry out various cellular processes, such as active transport,…
Q: Which of the following is NOT produced during the oxidative phase of the pentose phosphate shunt? a…
A: Pentose phosphate shunt is a metabolic pathway that is involved in the synthesis of pentose sugar…
Q: lactate 0 NAD+ НО 0 НО ОН он н О ОН N NH₂ NH₂ lactate dehydrogenase НО H- НО он н 0 ОН H H+ pyruvate…
A: The lactate dehydrogenase carries out the reversible conversion of pyruvate to lactate along with…
Q: Under conditions of strenuous activity (anaerobic) the product is: acetyl CoA pyruvate lactate
A: Ans- lactate
Q: What is the effect of an increase in the levels of glyceraldehyde-3-phosphate (G3P) on glycolysis.…
A: Amid the oxidation of glyceraldehyde 3-phosphate to 1,3-diphosphoglycerate, which is the as it were…
Q: Acetyt CoA Oxaloscetate CoA NADH Citrate NAD Isocitrate Malste Pumarate NAD NADH FADH, FAD a-…
A: TCA cycle is the tricarboxylic acid cycle which is the second step in cellular respiration that…
Q: NADH can act as an inhibitor of isocitrate dehydrogenase and a-ketoglutarate dehydrogenase. This is…
A: Hi! As you have posted multiple questions which is to be answered, we are authored to answer first…
Q: What part of the citric acid cycle is also part of the electron transport chain mechanism? O…
A: Cellular respiration is defined as the process where the series of metabolic reactions occurs within…
Q: Which of these statements concerning the following citric acid cycle reaction is true? Malate + NAD*…
A: Introduction: TCA cycle is a cyclic process. As many elements enters and leave the cycle, it should…
Q: Before the process of the Krebs cycle pyruvate must first be converted into A ethanol B. acetyl Co-A…
A: Introduction Kreb's cycle:- It is also referred to as the tricarboxylic acid cycle of the citric…
Q: Acetyl-SCOA A enzyme NADH B substrate substrate Aconitase NAD+ M enzyme C malate substrate NAD+…
A: A- Citrate synthase B- Citrate C- Isocitrate D- NAD+ E- NADH + H+ F- GDP + Pi G- GTP H- Succinate
Q: Elevated liver NADH levels favors gluconeogenesis. Explain this statement?
A: Gluconeogenesis is rather literally translated as 'new glucose synthesis'. It is a metabolic process…
Q: Which of the following is NOT TRUE about cholesterol biosynthesis? O HMG-COA reductase catalyzes the…
A: Biosynthesis of cholesterol generally takes place in the endoplasmic reticulum of hepatic cells and…
Q: Which statement best describes the Cori cycle? Group of answer choices It regenerates glucose from…
A: Cori cycle: This is the metabolic pathway in which lactate produced during anaerobic glycolysis is…
Q: A high NADH/NAD+ ratio will inhibit which pathways or enzymes by LeChatelier’s principle: Options:…
A: LeChatelier’s principle: According to LeChatelier’s principle, any change in the equilibria state of…
Q: Which of the following product enter the TCA (Krebs) cycle? O Pyruvate O Lactate O Acetyl Co A O…
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Q: Below are some statements about the TCA Cycle. Which statement is true based on what we have learned…
A: TCA is expanded as Tricarboxylic Acid Cycle. This cycle carries a chain of reactions that is used by…
Q: Which among the following catalyse dehydration step in the TCA cycle ○ Isocitrate dehydrogenase O…
A: The acetyl CoA molecules synthesized through oxidative decarboxylation of pyruvate enter into the…
Q: What is the name of the enzyme? 1. A) pyruvate dehydrogenase NADH + H* NAD* B) pyruvate kinase Ć=0…
A: Enzymes refer to a protein that aids in the conversion of reactants to form products. They decrease…
Q: 3-Phosphoglycerate is a metabolite in glycolysis. Which glycolytic enzyme generates this metabolite?
A: In biochemistry, glycolysis is defined as the aerobic type of metabolic pathway which converts or…
Q: CHOOSE THE CORRECT LETTER 1.Stearic acid requires eight cycles of B-oxidation to be completely…
A: Beta-oxidation is a catabolic process in which fatty acid molecules are broken down in the cytosol…
Q: t are the probable causes? Explain.
A: The mitochondrial succinate dehydrogenase (SDH) complex play the role in catalyzing the oxidation of…
Q: During which of the following conversions is NADH+H+ formed in the glycolysis cycle? a.…
A: The series of reactions that occur inside the living organisms are collectively known as metabolism.…
Q: Which of the following statements about the ß-oxidation cycle is/are TRUE? A. The fatty acyl…
A: In the Beta-oxidation of fatty acid cycle, there are four steps involved : 1. First Oxidation -…
Q: Select which of the following enzymes unique to glycolysis are also sites of regulation for…
A: Glycolysis is also known as Embden-Meyerhof pathway. It occurs in cytosol and converts glucose into…
Q: Explain the reasons for the oxidation of acetate through complex pathways in the citrate cycle.
A: TCA or tricarboxylic acid cycle is the second step of aerobic cellular respiration. It is an…
Q: During ETS, terminal electron acceptor finally receives electrons from a.Succinate dehydrogenase…
A: Reduced coenzymes NADH and FADH2 retains most of the free energy produced during the process glucose…
Q: Which of the following is higher during high levels of glutathione reductase and NADP? SH A HO (GSH)…
A: Glutathione reductase: Glutathione reductase is the main enzyme responsible for the conversion of…
Q: Which citric acid cycle enzyme utilizes a similar reaction mechanism to pyruvate dehydrogenase? O…
A: Enzymes are biological catalysts that speed up the rate of biochemical reactions by lowering the…
Q: Figure 17.9 shows the steps in the pyruvate dehydrogenase complex reaction cycle. A key product,…
A: Glycolysis converts glucose to pyruvate. Pyruvate is then converted to acetyl-CoA via pyruvate…
Q: An example for NADP+ dependent dehydrogenase is Phosphogluconate dehydrogenase. Succinate…
A: Acyl-CoA dehydrogenases (ACADs) are a group of enzymes that catalyse the first step in each fatty…
Q: Which Molecule Is Being Reduced In The Reation Pyruvate (C3H4O3) + NADH+H+ -> Lactate (C3H6O3)+NAD+
A: Lactic acid fermentation is defined as a type of metabolic process that occurs during the anaerobic…
Q: Choose all the enzymes or enzyme systems of the citric acid cycle that could be classified as…
A: Oxidoreductase is a class of enzymes in biochemistry that catalyzes the flow of electrons from one…
Q: Which glycolysis reactions are catalyzed by the following enzymes?(a) Pyruvate kinase(b)…
A: Glycolysis is the process, during which glucose molecule is converted into molecules of pyruvate.
Q: Select the following enzymes that utilize a mechanism where an enediol intermediate is formed. Check…
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Q: is acetate present in TCA cycle? Are carbon atoms of acetyle-CoA are converted into CO2?
A: The citric acid cycle is an important metabolic process that links sugars, fat, and protein…
Q: What is the primary role of the Kreb's cycle? To destabilize and split apart glucose molecules to…
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: How many copies of succinate dehydrogenase are found in a respirasome?
A: Respirasome, as a vital part of the oxidative phosphorylation system, undertakes the task of…
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- Question 9 - Under anaerobic conditions in the muscle, lactate dehydrogenase catalyzes the reaction converting pyruvate to lactate. What is the metabolic reason for this fermentation reaction? It is necessary to reduce pyruvate before it can be converted to acetyl-CoA and enter the citric acid cycle in muscle. NAD* must be replenished for glycolysis to continue. The reaction creates NADH which can produce additional energy in the electron transport chain. O Lactate is more oxidized than pyruvate.Question 29 options: If 6 molecules of acetyl CoA were completely oxidized by the CAC, how many molecules of FADH2 would be produced?Question 1: When the CAC is run in reverse by microorganisms that use it to fix carbon, the citrate synthase reaction is different and is catalyzed by an enzyme called ATP-citrate lyase. Write the reaction catalyzed by ATP-citrate lyase, then briefly (in one sentence) explain why the use of different chemistry (different from the ‘normal’ direction) makes sense here.
- Question 1: In some microorganisms, carbon fixation occurs by reversal of the citric acid cycle. This reversal is accomplished in part by the use of a strong reductant (ferredoxin) to drive the alpha-ketoglutarate dehydrogenase reaction in the reductive direction. Part a: ΔG°‘ for reaction as it occurs in the ‘normal’ (oxidative) citric acid cycle is -30.1 kJ/mol. The standard reduction potential for NADH is -0.32 V. In order to drive the reaction in the reverse direction, the reductant (a ferredoxin) must have a lower reduction potential than NADH/NAD+. Remembering that this is a two-electron reduction, and using the numbers given just above, compute the value of the ferredoxin reduction potential that would be needed to make the standard free energy zero (so that the reductive reaction is enegetically just as favorable as the oxidative reaction). Assume that all of the other reactants are the same in the reductive as in the oxidative reaction. Write out the steps in your calculation;…Question 1 - Photosynthesis lab Four common plant pigments are likely to be separated and visualized by the paper chromatography experiment. List the expected colors of each of these four pigments below.A) CaroteneB) Chlorophyll aC) Chlorophyll bD) Xanthophyll Explain the mechanism of how floating disks correspond to the rate of photosynthesis. List 2 controlled variables in the leaf disk assay List 2 manipulated variables in the leaf disk assay What is the purpose of adding baking soda to the leaf disk assay? What would you expect during the leaf disk assay if baking soda was not added at all?QUESTION 22 When the final product of a series of enzymatically-catalyzed reactions binds to the first enzyme in the pathway to limit its production, it generally uses ___ because the structure of this final product is generally not similar to that of any of the enzyme's normal substrates. Allosteric activation Zymogen activation Covalent modification Competitive inhibition Allosteric inhibition
- QUESTION 35 True or false? If a treatment were developed that could extend the lives of lung cancer patients by several years, the incidence of the disease would increase.Question 1: ATP synthases contains 3 copies of each of the large subunits (called α and β in the E. coli enzyme). The number of c subunits can vary among different ATP synthases, ranging from 8 to 17. Part a: Briefly explain how this variation in the number of c subunits would affect the energetics of ATP synthesis. For a fixed value of the protonmotive force, how much energy can the gradient provide to drive one revolution of the ATP synthase, in a synthase with 8 c- subunits versus a synthase with 17 c-subunits?Question 3 Without oxygen (O2) present, glycolysis normally cannot continue because: There is no more NAD+ being produced The mitochondria die from lack of oxygen O2 is used up during glycolysis enzymes can only function if O2 is present ATP formation requires O2
- Question 1: The 4 kinase steps in glycolysis are catalyzed by hexokinase, phosphofructokinase, phosphoglycerate kinase, and pyruvate kinase. Write each of these four reactions, including all participants. i. ii. iii. iv.Question No. 1 Give the advantages and disadvantages of submerged fermentation and solid state fermentation. Give two examples of acetic acid fermentation.Question 9 Why does acetyl Co-A occupy a central role in cellular metabolism? Question 9 options: Acetyl Co-A is essential to the catabolic process that includes triglyceride synthesis Only amino acids and glucose can be converted to acetyl Co-A since glucose cannot be derived from fatty acids Amino acids, fatty acids and glucose can all be converted to acetyl Co-A Acetyl Co-A is essential to the anabolic process that includes the citric acid cycl