34. It was discussed in class that ATP is not the only \"high energy molecule in

Question

34. It was discussed in class that ATP is not the only "high energy molecule in living cells. Complete the table below, which lists several high-energy molecules used in the cell. Indicate their "energy content (AG° of hydrolysis) in both kcal/mole and kJ/mole (1 kcal 4.184 kJ). Notice how these values compare with ATP energy of hydrolysis and provide one example of metabolic pathways in which they participate. Compound kcal/mole kJ/mole Metabolic pathway example Phosphoenolpyruvate 1,3-bis-Phosphoglycerate Adenosine triphosphate (ADP)7.3 Glucose-6- -30. 5 Widespread use

Explanation / Answer

Phosphoenol pyruvate:

Phosphoenol pyruvate-------pyruvate kinase--------> Pyruvate +Pi (-61.9 kJ/mole)

1,3 bis phosphoglycerate:

1, 3bisphosphoglycerate + ADP ------glyceraldehyde 3 phosphate dehydrogenase----> 3 phosphoglycerate + ATP (-49.3kJ/mole)

Glucose 6 phosphate:

Glucose 6 phosphate ------ Glucose 6 phosphatase-----> Glucose (13.8kJ/mole)

Compoound kcal/mole kJ/mole Metabolic pathway example Phosphoeneol pyruvate -14.79 -61.9 Glycolysis and gluconeogenesis 1,3 bis phosphoglycerate -11.8 -49.3 Glycolysis in cellular respiration and calvin cycle of photosynthesis Adenosine triphosphate (ADP) -7.3 -30.5 Widespread use Glucose 6 phosphate -3.3 -13.8 Glycolysis, glycogenesis

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