The overall reaction for the transfer of a high energy phosphoryl group from glu
ID: 497108 • Letter: T
Question
The overall reaction for the transfer of a high energy phosphoryl group from glucose-6-phosphate to produce the second entry in Table 15.1 can be written as: (choose one of the answers).
A. glucose-6-phospate + ADP + 1,3-bisphosphoglycerate --> glucose + triphosphoglycerate + ADP + Pi (4.78) 10 hydrolysis (4Go) of some phosphorylat (2.39) energies of 15.1 Standard free mol-1 mol U compounds Compound 14.8 Phosphoenolpyruvate (PEP) (.3-BPG) 1.3 49.4. 11.8 43.1 10.3 Creatine phosphate 30.5 ATP (to ADP) 20.9 5.0 Glucose 1-phosphate 19.3 Pyrophosphate (PP) 13.8 3.3 lucose 6-phosphate 9.2 ycerol 3-phosphateExplanation / Answer
Answer: B. glucose-6-phosphate + 2ADP + 1,3-bisphosphoblycerate --> glucose + 2ATP + 3-phosphoglycerate
Overview of Glycolysis: observe bold one only. leftside and right side steps 2 & 7 are key to this problem
1. Hexokinase catalyzes: glucose + ATP --> glucose-6-phosphate + ADP
2. Phosphoglucose Isomerase catalyzes: glucose-6-phosphate (aldose) --> fructose-6-phosphate (ketose)
3. Phosphofructokinase catalyzes: fructose-6-phosphate + ATP --> fructose-1,6-bisphosphate + ADP
4. Aldolase catalyzes: fructose-1,6-bisphosphate--> dihydroxyacetone phosphate + glyceraldehyde-3-phosphate.
5. Triose Phosphate Isomerase (TIM) catalyzes: dihydroxyacetone phosphate (ketose)--> glyceraldehyde-3-phosphate (aldose)
6. Glycolysis continues from glyceraldehyde-3-phosphate: Glyceraldehyde-3-phosphate Dehydrogenase catalyzes: glyceraldehyde-3-phosphate + NAD+ + Pi--> 1,3,bisphosphoglycerate + NADH + H+
7. Phosphoglycerate Kinase catalyzes: 1,3-bisphosphoglycerate + ADP--> 3-phosphoglycerate + ATP
8. Phosphoglycerate Mutase catalyzes: 3-phosphoglycerate--> 2-phosphoglycerate.
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