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- 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 deficiencyGiven 1 molecule of maltose considering the malate-aspartate shuttle. Identify the following:1. Total number of glucose molecules entering glycolysis2. Total number of pyruvate molecules produces at the end of glycolysis3. Total number of mitochondrial NADH produced after pyruvate is acted upon pyruvate dehydrogenase complex4.Total number of CO2 released right after the pyruvate dehydrogenase complex reaction5. Total number of acetyl coA molecules entering the citric acid cycle6. Total number of net cytosolic ATP molecules produced right after glycolysis7. Total number of all NADH molecules produced after complete oxidation8.Total number of all FADH2 molecules produced after complete oxidation9. Total number of all mitochondrial GTP molecules produced10. Total number of net ATP molecules produced after complete oxidationElevated levels of acetyl-CoA will act as an effector for which of the following enzymes? more than one can be correct Pyruvate carboxylase. Pyruvate kinase Pyruvate dehydrogenase. Citrate synthase a-Ketoglutarate dehydrogenase.
- Which of the following is a negative regulator of the pyruvate dehydrogenase complex (PDC)? 1. acetyl CoA 2. ADP 3. pyruvate 4. citrateWhich of the listed glycolytic enzymes adds a phosphate group to ADP to produce ATP? 1.) pyruvate kinase 2.) hexokinase 3.) phosphofructokinase-1 4.) pyruvate dehydrogenase 5.) phosphexose isomerase 6.) lactate dehydrogenaseThe coenzymes required for the activity of the pyruvate dehydrogenase complex are a. biotin, thiamine pyrophosphate, CoASH, and lipoic acid b. lipoic acid, NAD+, thiamine pyrophosphate and FAD c. NAD+, lipoic acid, tetrahydrofolate, CoASH d. biotin, tetrahydrofolate, vitamin B6
- Which enzyme involved in the TCA cycle produces very similar outcomes compared to pyruvate dehydrogenase ?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 GlyoxylateWhich of the following is NOT a component of the pyruvate dehydrogenase complex? a. dihydrolipoyl dehydrogenase b. dihydrolipoyl transacetylase c. pyruvate dehydrogenase d. dihydrolipoyl catalase
- Which of the following glycolytic enzymes catalyzes the conversion of fructose-1,6-bisphosphate into the two product molecules dihydroxyacetone phosphate, and glyceraldehyde-3-phosphate? phosphoglycerate kinase pyruvate kinase malate dehydrogenase aldolase phosphofructokinaseWhy 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?Complete the following description of the mechanism of the pyruvate dehydrogenase complex by using words provided. Not all words will be used. Each word will be used only one time. Three enzymes of the pyruvate dehydrogenase complex work together to catalyze the production of Acetyl CoA from Pyruvate. First, a 2-carbon unit composed of Carbons # ____ and ____ of Pyruvate are added to the co-enzyme ______ and whereas Carbon # ______ leaves as CO. The C-2 unit together with the co-enzyme is called ______ .The C-2 unit is then transferred to the 2nd co-enzyme ____, which is initially in it ___ state. The enzyme that catalyzes this step is ______.From here, the C-2 unit is transferred to form a _____ linkage with CoA-SH to generate_____