.What would happen in the Krebs cycle with the loss of activity of phosphoglycerate kinase? What would happen in glycolysis?
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- 1. Is glycolysis catabolic or anabolic? Discuss the importance of glycolysis. 2. What triggers gluconeogenesis? Then, what is the main purpose of gluconeogenesis?1. What is the common metabolic pathway of these three nutrients? Explain the process involved. 2. Make a flow chart diagram of each step in Glycolysis. Identify the biochemical reactions in each step and its corresponding enzymes and coenzymes. 3. What metabolic products are formed from pyruvate in each case: a) anaerobic conditions in the body b) anaerobic conditions in yeast c) aerobic conditions1. Discuss the glycogen synthesis. Give the three enzymes required for this process and their functions. 2. Discuss the glycogen degradation. Give the three enzymes required for this process and their functions.
- D. The following reactions are encountered in the metabolic cycles. Give the main class of enzymes that catalyzes these reactions. 6. starch + HOH → a-D-glucose 7. acetyl CoA + oxaloacetate → citric acid 8. pyruvate + CO2 + ATP → oxaloacetate + ADP + Pi 9. creatine + ATP → phosphocreatine + ADP 10. alanine → propanoic acid + NH3D. The following reactions are encountered in the metabolic cycles. Give the main class of enzymes that catalyzes these reactions. / 7. acetyl CoA + oxaloacetate citric acid 8. pyruvate + CO2 + ATP + oxaloacetate + ADP + P. 9. creatine + ATP phosphocreatine + ADP 10. alanine → propanoic acid + NH, 11. ala-gly-val → ala + gly + val 12. acetylcholine ester choline + acetic acid 13. triglyceride - 3 fatty acids + glycerol 14. deoxyribose + bases (A, G, C, T) + P, - DNA 15. glyceraldehyde-3-phosphate + dihydroxyacetone phosphateD. The following reactions are encountered in the metabolic cycles. Give the main class of enzymes that catalyzes these reactions. 1. glucose + pyruvate a-ketoglutarate + alanine 2. lactate + NAD - pyruvate + NADH + H* 3. D-ribulose-5-phosphate D-xylulose-5-phosphate 4. fructose-1-phosphate fructose-6-phosphate 5. glucose + ATP glucose-6-phosphate + ADP 6. starch + HOH - a-D-glucose 7. acetyl CoA + oxaloacetate - citric acid 8. pyruvate + CO, + ATP - oxaloacetate + ADP + P. 9. creatine + ATP - phosphocreatine + ADP 10. alanine propanoic acid + NH, 11. ala-gly-val → ala + gly + val 12. acetylcholine ester choline + acetic acid 13. triglyceride - 3 fatty acids + glycerol 14. deoxyribose + bases (A, G, C, T) + P, - DNA 15. glyceraldehyde-3-phosphate + dihydroxyacetone phosphate
- Citrate (the product of the first step of the TCA cycle) is considered to be a sign of high energy. 1. Which step of glycolysis does citrate regulate (does it activate or inhibit that step?) 2. WHY exactly is citrate considered a sign of high energy?a. Why is the energy investment stage of glycolysis called as such? b. Why is the energy harvest stage of glycolysis named as such?choose the metabolic pathway being described in the statement choices: Digestion Glycolysis Formation of Acetyl CoA Krebs Cycle ETC Reactions Glycogenesis Glycogenolysis Gluconeogenesis 1. catalyzed initially by glycogen phosphorylase 2. breaking of glycosidic linkages of glycogen 3. requires pumping of hydrogen ions 4. lactic acid is converted to glucose
- D. The following reactions are encountered in the metabolic cycles. Give the main class of enzymes that catalyzes these reactions. 1. glucose + pyruvate → a-ketoglutarate + alanine 2. lactate + NAD+ → pyruvate + NADH + H+ 3. D-ribulose-5-phosphate → D-xylulose-5-phosphate 4. fructose-1-phosphate → fructose-6-phosphate 5. glucose + ATP → glucose-6-phosphate + ADP36. What is the CORRECT order of cellular respiration events? Group of answer choices glycolysis—pyruvate oxidation—Krebs cycle—oxidative phosphorylation glycolysis—Krebs cycle—pyruvate oxidation--oxidative phosphorylation Krebs cycle—oxidative phosphorylation--glycolysis—pyruvate oxidation Krebs cycle—glycolysis--oxidative phosphorylation—pyruvate oxidation1. Explain what is the relationship between glycolysis and gluconeogenesis? 2. What activates glycolysis and inhibits gluconeogenesis? Discuss.