What is the yield of ATP when the following substrates are c

What is the yield of ATP when the following substrates are completely oxidized in prokaryotes and eukaryotes? Assume that glycolysis, the TCA cycle, and oxidative phosphorylation are fully active.

a. Glucose

b. Fructose-1,6-diphosphate

c. Glyceraldehyde-3-phosphate

d. Pyruvate

Solution

Glucose on complete oxidation to CO₂ and H₂O gives 38 ATP in eukaryotic cells(aerobic) and 2 ATP in prokaryotic cells which are generally anaerobic.

Fructose-1,6-diphosphate gives 40 ATP in eukaryotic cells

Glyceraldehyde-3-phosphate gives 40 ATP in eukaryotic cells

Pyruvate gives 30 ATP in eukaryotic cells