Adenosine triphosphate, ATPr is a final product of food metabolism. It drives me

Question

Adenosine triphosphate, ATPr is a final product of food metabolism. It drives metabolic reactions in the body. Chemical reactions in the body proceed spontaneously (are favorable) if the free-energy change (Delta G) is negative. When a chemical reaction has positive (Delta G) it can be coupled with an energetically favorable reaction so that the overall Delta G is negative. The reaction converting glycerol to glycerol-3-phosphate (energetically unfavorable) can be coupled with the conversion of A:? to AD? (energetically favorable): What are the net products of the coupled reactions above? Check all that apply. The reaction converting glycerol to glycerol-3-phosphate is energetically unfavorable by 9.2 kJ- The reaction of ATP with water to yield ADP?, hydrogen phosphate ion. and hydrogen ion is energetically favorable by 30.5 k.J These reactions are coupled so that the overall process is energetically favorable. What is Delta G for the overall process? Express your answer numerically in kilojoules.

Explanation / Answer

The net products are the ones that you GET. (not thespectators, or whatever you call them) So you GET (rhymes with net) an H+ ion and G-3-P The rxn is coupled. We know that delta G for the first is +9.2kJ And that delta G for the second is -30.5kJ Find the net delta G by summing them.. -21.3kJ. The overall process is FAVOURABLE, so you MUST get a NEGATIVEdG overall. We do, so this makes sense...

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