How much energy from oxidizing a 12c fatty acid

[wesida]

How much energy do we get from each phase of oxidizing a triglycride molecule with 12c chains of fatty acids.

I tried calculating it but i get numbers not in the range that i think is right.

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-so Glycerol goes into glycolysis and make 1 nadh and 1 atp?

-in the intermediate step pyruvic acid is made while forming 1 nadh?

-in beta oxidation i know that 2 carbons are broken down each time but iam not sure where to go from there

 

thanks

[YT2095]

you need to count the bonds and bond types that are broken then look up each on a chart, and add them up.

then do the same for the new bonds that are formed.

the difference between the 2 will be the overall energy (Delta H).

[wesida]

Humm, do you know where i can get such a chart. I am taking a basic microbiology class and iam doing this for extra credit. so i dont have a biochem book.

[YT2095]

sure, try this: http://www.wiredchemist.com/chemistry/data/bond_energies_lengths.html

[wesida]

Thank you