I have the following information: [Free-Energy Changes of Glycolytic Reactions i

Question

I have the following information:

[Free-Energy Changes of Glycolytic Reactions in Erythocytes]

[Standard Free-Energy values of hyidrolysis for some phosphorylated compounds and Acetiy-CoA]

I am solving a set of exercises, one of them is requesting: Display a list, in ascending order of stability, of types of substances (just for the reactions with blue rectangles), depending on the type of chemical bond involved in the phosphate. Please include in this list, as a reference point, solubilised phosphate in the cytoplasm (PO4-3 or Pi). Could you help me?. Thank you!

AG (kJ/mol) -16,7 1,7 -14,2 23,8 Etapa da reaçao glicolitica ?6(kl/mol) O Glicose +ATPglicose-6-fosfato +ADP -33,4 0 a 25 Frutose-6-fosfato ATPfrutose-1,6-bifosfato + ADP -22,2 o Frutose-1,6-bifosfato d -6a0 0 a4 6,3 -18,8 0 Gliceraldeído-3-fosfato+P +NAD1,3-bifosfoglicerato +NADH +H -2 a 2 0 a2 0 a 0,8 0 a 3,3 -16,7 0 1,3-Bifosfoglicerato +ADP 3-fosfoglicerato +ATP 0 3-F 7,5 -31,4 9 2-Fosfogliceratofos Fosfoenolpiruvato +ADP piruvato +ATP

Explanation / Answer

If the free energy change is negative, then the reaction would be spontaneous and more stable as bonds between the phosphates in ATP are known as high-energy bonds because their hydrolysis is accompanied by a relatively large decrease in free energy. The total free-energy change resulting from the hydrolysis of ATP to AMP is twice that obtained by the conversion of ATP to ADP.

Ascending Order of Stability

1. Fructose-6-fosfato + ATP

2. Glicose + ATP

3. 1,3-Bifosfoglicerato + ADP

4. Fosfoenolpiruvato + ADP

Stability:- 4>3>2>1

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