Which of the following is higher during high levels of glutathione reductase and NADP? SH A HO (GSH) но NH2 NH2 HO OH C-CH-CH2-CH2-C-NH-CH-–ċ–NH-CH2-C CH2 B (GSSG) CH2 C-CH-CH2-CH2-Ć-NH-CH–Ç-NH-CH;-Ć HO DH NH2
Q: Please click on the figure to open it. Unequivocally, place the four 6-carbon molecules from MOST…
A: The biomolecules present in the cells are broken down to produce energy, which there is a need in…
Q: What type of regulation would be expected when anaerobic metabolism is occurring in the muscle?…
A: At the onset of exercise, the increase in metabolic demand of the muscles is fueled "anaerobic"…
Q: If cach NADH generates 3 ATP molecules and cach FADH, generates 2 ATP molecules, calculate the…
A: Beta oxidation is oxidation of fatty acid at beta carbon. This results in formation of two carbon…
Q: pyruvate dehydrogenase complex HC-C-S-CoA (acelyl CoA) COA H citrate CH2 но-с-соо aconitase…
A:
Q: Acetyl CoA 1. Citric Acid 9. Malate dehydrogenase NADH NAD Isocitrate 8. NAD 1- Isocitrate Fumarase…
A:
Q: Which of the following should inhibit the PDC by feedback inhibition? Choose all that apply.
A: Pyruvate dehydrogenase complex abbreviated as PDC is a multi-enzyme complex, complex of three…
Q: When you are awake and your blood sugar levels are very low which of the following enzymes would you…
A: Fructose 2,6-bisphosphate mediate the regulation of glycolysis and gluconeogenesis in the liver. It…
Q: A Acetyl group combines with coenzyme A to form acetyl CoA B Citrate is formed Hydrogen atoms are…
A: The given data is related to aerobic respiration. Which includes following steps: Glycolysis (…
Q: Which reactions of the TCA cycle generate NADH? 1. a-ketoglutarate dehydrogenase 2. Citrate synthase…
A: Tricarboxylic acid cycle (TCA cycle) is also known as Citric acid cycle and Krebs cycle. This cycle…
Q: Given the following question on the image identify the following:1. Total number of glucose…
A: Note - Hi ! Thank you for the question. We are authorized to answer three subparts at a time. Since…
Q: How many molecules of ATP are released in the overall catabolism of glycerol to acetyl-CoA? How many…
A: The cellular respiration is the process in which the glucose in the diet is oxidized through…
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: What does the pyruvate dehydrogenase complex do? Choose one: It produces pyruvate in the cytosol. It…
A: PDH complex connects the citric acid cycle and subsequent oxidative phosphorylation to the…
Q: :Acetyl CoA produced from pyruvate occurs in the cytosol. not depends on the coenzyme biotin. is…
A: The process of glycolysis yields pyruvate from the glucose by various step reactions using the…
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 one of the following statements regarding Stage II of Catabolism is TRUE? O In Stage III,…
A: Catabolism involves the breakdown of the molecules into a simpler form and involves the release of…
Q: Name three enzymes of glycolysis that produce NADH, the first ATP, and the last ATP, in that order.…
A: Glycolysis is the first stage of cellular respiration in which one molecule of glucose is converted…
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: The PDH mechanism coenzyme that plays a direct role in the generation of acetyl CoA is NADH…
A: PDH means pyruvate dehydrogenase complex. This enzyme has three subunits named pyruvate…
Q: Which reactions in the payoff phase of glycolysis are exergonic at standard conditions? O…
A: Glycolysis is a metabolic pathway where one molecule of glucose is converted into two molecules of…
Q: Which reaction is irreversible? oxidized glutathione + NADPH + H+ → reduced glutathione + NADP+…
A: Introduction: When a reaction is irreversible, it cannot be reversed, i.e. the products do not…
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: 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: 20) Determine the number of ATPS generated from complete oxidation of a) glyceraldehyde-3-phosphate…
A: Central metabolic pathways include glycolysis and TCA cycle. Carbohydrates are catabolized through…
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 of the following events does not occur during pyruvate processing (pyruvate oxidation)? One…
A: Pyruvate oxidation is a process; which occurs in the presence of oxygen ; in the mitochondrial…
Q: The conversion of pyruvate to Acetyl-CoA involves an oxidative decarboxylation. Correct the path of…
A: The conversion of pyruvate to acetylCoA is catalysed by the enzyme pyruvate dehydrogenase…
Q: During glycolysis, the major energy generating step involves: pyruvate kinase…
A: Glycolysis is the primary metabolic reaction occurring in living cells that helps to break the…
Q: The coenzymes required for the activity of the pyruvate dehydrogenase complex are a. biotin,…
A: Pyruvate dehydrogenase was a multifunctional enzyme that was located in mitochondria and catalysis…
Q: Which of the following enzymes are inhibited by ATP? (choose all the correct answers) citrate…
A: ATP has pleiotropic effects may activate or inhibit the enzymes. ATP inhibits the enzyme by…
Q: Which of the following is the correct sequence of reactions in the B-oxidation of a fatty acyl-CoA?…
A: Beta-oxidation of fatty acid involves the hydrolysis of long-chain fatty acid into acetyl CoA and…
Q: What are the B-oxidation products of lauric acid (C12H2402), a major component of coconut oil? A.6…
A: B-oxidation: It is the catabolism of fat since the bond break from 2nd/beta carbon and 3rd/gamma…
Q: The glycolytic enzyme pyruvate kinase catalyzes the conversion of: 1,3-bisphosphoglycerate into…
A: Glycolysis is a metabolic pathway that converts one molecule of glucose to two molecules of…
Q: FILL IN THE TABLE PATHWAY It takes place in PRODUCT No. of Product Equivalent ATP ENZYME…
A: Cellular respiration is an oxidative process, in which free energy released from organic…
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: 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: Which of the listed glycolytic enzymes adds a phosphate group to ADP to produce ATP? 1.) pyruvate…
A: Glycolysis is the process in which glucose is broken down to produce energy. It produces two…
Q: Identify the conversion which is not involved in glycolysis. a.Glucose to glucose 6-phosphate by…
A: The glycolysis is a ten-step process in which glucose is converted into the molecule pyruvate. It…
Q: What may be used as a reducing power by glutamate dehydrogenase? 1. NADH 2. acetyl CoA 3. NADPH 4.…
A: In biosynthesis of amino acids, two key amino acids which provide critical entry point are glutamate…
Q: What is the energy yield in ATP molecules associated with each of the following : a. Glucose → 2…
A: Adenosine triphosphate (ATP) is an organic compound that stores energy in the form of phosphate…
Q: During strenuous exercise, the NADH formed in the glyceraldehyde 3-phosphate dehydrogenase reaction…
A: During strenuous exercise, the glycolysis that continues is known as anaerobic glycolysis and the…
Q: The most regulated enzyme in glycolysis is a Hexokinase b G3P Dehydrogenase c Pyruvate…
A: Glycolysis is a metabolic pathway during which glucose molecule splits into pyruvate molecules with…
Q: Inhibiting which of the following enzymes will block gluconeogenesis but not glycolysis?
A: In glycolysis, the breakdown of glucose molecules generates two net adenosine triphosphate (ATP)…
Q: What type of regulation would be expected when anaerobic metabolism is occurring in the muscle?…
A: Glycolysis is also known as the Embden Meyerhof pathway and it is highly conserved from…
Q: The pentose phosphate pathway is also known as (choose one(: involves glutathione reductase. an…
A: The pentose phosphate pathway is a metabolic pathway parallel to glycolysis. It generates NADPH and…
Q: What type of regulation would be expected when anaerobic metabolism is occurring in the muscle?…
A: Depending on the need of the body, the fate of intermediates of Glycolysis, gluconeogenesis, Citric…
Q: If the TCA cycle is over-stimulated, too much of _____ will be produced. acetyl-CoA…
A: The foods that we consume helps in providing us with the needed energy. Cellular respiration is that…
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: Which of the following enzymes catalyzes the MOST regulated and rate limiting reaction in cellular…
A: Cellular respiration is considered as the necessary part of life, which involves the production of…
Step by step
Solved in 2 steps
- Select the correct answer: Lactate dehydrogenase (LDH) plays an essential role in an exercising muscle, especially when the level of excursion surpasses the ability of circulatory systems ability to supply adequate oxygen. What is the main reason LDH is so important to the muscle under these conditions? A)It removes excess lactic acid from the muscle to create pyruvate. B)It produces NADH for energy while converting pyruvate into lactate. C)It resupplies NAD+ to glyceraldehyde 3-phosphate dehydrogenase. D)It decreases pH thus decreasing the dissociation rate of oxygen from hemoglobin. E)It produces one mole of ATP via substrate level phosphorylation.Which of the following conditions is most likely to force a muscle cell to metabolize glucose anaerobically(fermentation) under normal oxygenation ? - Glyceraldehyde-3-phosphate dehydrogenase deficiency - Lactate dehydrogenase deficiency -Pyruvate kinase deficiency -Aldolase deficiency - Cytososic Glycerol-3-phosphate dehydrogenase deficiencyWhat type of regulation would be expected when anaerobic metabolism is occurring in the muscle? Select all that apply. O Activation of pyruvate dehydrogenase kinase O Increased levels of calcium to activate pyruvate dehydrogenase phosphatase O Phosphorylation of pyruvate dehydrogenase O Inhibition of pyruvate dehydrogenase complex O Increased levels of NADH to activate citrate synthase O Increased levels of NADH to inhibit alpha-ketogluterate dehydrogenase complex O Increased levels of acetyl CoA to activate pyruvate carboxylase for gluconeogenesis
- a Lactate dehydrogenase H H3C-C-COO- OH L-(+)-Lactase b Creatine kinase CH3 H₂N This is a(an) NH₂ Creatine + ATP Adenosine triphosphate This is a(an) ADP OOC-C-CH3 Adenosine diphosphate Pyruvate CH3 ON ồ Ò NH2 Y PhosphocreatineWhy does it make metabolic sense for the same hormone signal to stimulate glycogenolysis and inhibit glycolysis in the liver while stimulating both glycogenolysis and glycolysis in muscles?Lactate dehydrogenase (LDH) plays an essential role in an exercising muscle, especially when the level of excursion surpasses the ability of circulatory systems ability to supply adequate oxygen. What is the main reason LDH is so important to the muscle under these conditions? It produces one mole of ATP via substrate level phosphorylation. It resupplies NAD+ to glyceraldehyde 3-phosphate dehydrogenase. It decreases pH thus decreasing the dissociation rate of oxygen from hemoglobin It produces NADH for energy while converting pyruvate into lactate. It removes excess lactic acid from the muscle to create pyruvate. Next
- The conversion of glyceraldehyde-3-phosphate into 1,3-bisphosphoglycerate reduces NAD+ to NADH. Under anaerobic conditions, how is NADH oxidized back to allow for continuing glycolysis? (name the compounds involved in the reaction besides NADH and their draw structures)If the brain needs glucose, then gluconeogenesis stops after reaction (9, 8, 10, 2) because (phosphoenolpyruvate, glucose, glucose-6-phosphaet, fructose-6-phosphate) can be exported from the hepatocyte using a transporter.com/forms/d/e/1FAIPQLSC/eqW3XiZj4epr1jYXQntAml3s2wbzN_0CV2XL The end process of glycolysis is: O Malate O Acetyl - CoA O Pyruvate O G3P How many molecules of CO2 are produced by glycolysis?" O 3 2.
- For an individual whose liver is regulated by glucagon binding, when energy is needed - what is the major source of carbon skeletons used to produce TCA cycle intermediates? Amino acids Glucose Fatty acids GlyoxylateWhy is oxaloacetate depletion from the TCA cycle important for the initiation of ketogenesis? What causes this oxaloacetate depletion? What tissue type in our body is this oxaloacetate depletion found and why is it not found in other tissues?The glutamate dehydrogenase (GDH) catalyses the following reaction: H +H₂N- -C -COO CH₂ CH₂ COO™ acide glutamique + NAD + H₂O GDH Time (min) A340 COO™ c=o CH₂ 5 1 2 3 4 1.760 1.718 1.675 1.635 1.595 CH₂ COO + NH4+ NADH + H+ acide a-cétoglutarique The activity of GDH is monitored in the sense of the formation of glutamate using the following conditions: 0.2 mL of 5 M ammonium sulphate 2.4 mL of buffer at pH 8 0.1 mL of NADH at 6.15 mg.mL-¹ (M = 709 g.mol-¹) 0.2 mL of 1 M a-ketoglutarate solution Warm mixture at 25 °C for 5 min Add 0.1 mL of GDH solution containing 1.6 mg.mL-¹protein to start the reaction. The change in absorbance at 340 nm is monitored, in a 1-cm cuvette, every minute for 10 min. Results are given in the table below: Data ENADH at 340 nm = 6220 M¹.cm7 6 7 8 9 10 1.550 1.510 1.489 1.476 1.451 Calculate ammonium sulphate, NADH, concentrations in the reaction medium at t = 0. proteins - Draw the graph A = f(t). Calculate A340 at t = 0 and place this point on the curve. -…