Recall that the complete oxidation of a mole of glucose releases 686 kcal of energy. The phosphorylation of ADP to form ATP stores approximately 7.3 kcal per mole of ATP. What is the approximate efficiency if cellular respiration for the mutant organism that produces only 29 moles of ATP for every mole of glucose oxidized, rather than the usual 36 to 38 mold of ATP?
A. 0.4%
B. 25%
C. 30%
D. 40%
E. 60%
Answer: C