Phosphoglycerate mutase is classified as an isomerase. Question 14 options: a) Trueb) False
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11. Which amino acid's residue plays a role in the phosphoglycerate mutase reaction in glycolysis for muscle and yeast? a. Leucine b. Lysine c. Alanine d. Histidine 12. Which of the following mutases catalyze the formation of a 2,3 BPG intermediate? Write the complete chemical reaction for the mutase you identified. a. Muscle phosphoglycerate mutases b. Plant phosphoglycerate mutases c. Yeast phosphoglycerate mutases d. a and c only e. All of the above 13. Which of the following is not regulated in glycolysis? Write the complete chemical reaction involving the correct enzyme. a. Pyruvate kinase *b. Phosphoglycerate kinase c. Hexokinase d. PFK-1 14. Transfer of the phosphoryl group from PEP to ADP is an example of a. A mutase reaction b. Isomerization c. A dehydrogenase d. None of the above 15. Which of the following is a metabolically reversible enzymatic reaction of glycolysis? a. Pyruvate kinase reaction b. PFK-1 reaction c. Hexokinase/Glucokinase reaction d. None of the above 16. Two molecules of ATP are produced per glucose during the hexose stage of glycolysis. a. True b. False 17. In glycolysis, there is a net yield of 2 molecules of ATP per molecule of glucose. a. True b. False 18. Isozymes are different proteins from one species that catalyze different chemical reactions. a. True b. False 19. The reaction catalyzed by PFK-1 is metabolically reversible. a. True b. False 20. Glucose is the only hexose that can enter the glycolytic pathway. a. True b. False 21. Glyceraldehyde 3-phosphate and dihydroxyacetone phosphate are substrates in an oxidation and phosphorylation reaction, which yields a high-energy mixed anhydride. a. True b. False
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2. DETERMINE WHETHER THE STATEMENT IS TRUE OR FALSE A) Regarding phosphoenolpyruvate carboxykinase that is involved in gluconeogenesis: - It can be found in the cytosol. - It converts oxaloacetate into phosphoenolpyruvate. - Its catalytic activities require ATP. - Its catalytic activities involve hydrolysis. - Its catalytic activities require bicarbonate ions. B) Fructose 1,6-bisphosphatase in gluconeogenesis involves the following event(s): - Its catalytic activities require ATP. - Its catalytic activities require NADH. - Its catalytic activities involve hydrolysis. - Its activity increases when AMP levels increase. - It converts fructose 1,6-bisphosphate into fructose 6-phosphate.
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