Starting with a single pyruvic acid, how many of the following are produced in Krebs cycle?
a. 1 ATP, 1 CO2, 4 NADH, and 1 FADH2
b. 2 ATP, 3 CO2, 4 NADH, and 1 FADH2
c. 36 ATP, 6 CO2, 8 NADH, and 2 FADH2
d. 2 ATP, 6 CO2, 8 NADH, and 2 FADH2
Answer: b