Through which conversion is energy released?

a. ADP to ATP
b. ATP to ADP
c. NADP+ to NADPH
d. CO2 and H2O to C6H12O6 and O2

Question

Through which conversion is energy released?

a. ADP to ATP
b. ATP to ADP
c. NADP+ to NADPH
d. CO2 and H2O to C6H12O6 and O2

frostbite · Answer

You tell me:
a. $\Delta G=31~kJ/mol$
b  $\Delta G=-31~kJ/mol$
c.  Lets stay with cellular energy sources shall we?
d) $\Delta G=2 870.224~kJ/mol$

anonymous · Answer

Im sorry, I dont understand that

frostbite · Answer

Okay I help you limiting the answers to a and b. The reason for is that c) electron carries and don't really release energy, d) is the building of glucose from carbon dioxide and water which obliviously most use energy.

So the only difference in between a) and b) ATP being made into ADP or vice versa. I can say the binding in ATP that is broken into ADP is highly energy rich. So if you break a high energy bond, the energy is released for other doings. :)

frostbite · Answer

The things I shows is called change Gibbs free energy ($\Delta G$) and we always say that if $\Delta G$ is lower than 0 free energy is release. (the reaction is spontaneous)