How does the oxidation of one glucose molecule compare to the oxidation of palmitic acid (palmitate)?

Dec 20, 2015

Both generate ATP.

Explanation:

The oxidation of one glucose molecule yields about 34 ATP, whereas the oxidation of palmitic acid (palmitate) yields 129 ATP.
http://oregonstate.edu/dept/biochem/hhmi/hhmiclasses/biochem/lectnoteskga/2kjan14lecturenotes.html

The respiratory quotient (RQ) of glucose is $\left(6 \text{CO"_2)/(6"O"_2}\right) = 1$.
The RQ of palmitic acid is $\left(16 \text{CO"_2)/(23"O"_2}\right) = 0.70$

A lower RQ means that more oxygen is consumed relative to the production of carbon dioxide, which means that more ATP can be produced.

http://www.tiem.utk.edu/~gross/bioed/webmodules/respiratoryquotient.html