Question

What is produced during the Krebs cycle?

a. CO2, ATP, NADH, and FADH2
b. Pyruvate, CO2, and ATP
c. ATP, FADH2, and H2O
d. H2O, ADP, and NADH

Answer 1

I can say the answer is a. But ATP is not got directly from Krebs cycle. We actually get GTP (guanosine triphosphate) and can have 2 fates:
1) Participate in the protein synthesis
2) be converted into ATP by an enzyme from the class of enzymes called nucleoside diphosphorkinases. The reaction would be: GTP + ADP -> GDP + ATP