6.products of glycolysis include:

A.pyruvate
B.ATP
C.NADH
D. all of the above

7.in aerobic respiration, carbohydrates are ultimately broken down into:

A. Acetyl - CoA
B.CO²
C.O²
D. H²O

8. during a hard exercise, what causes an "oxygen debt"?

A. A build- up of lactic acid
B. A build- up of carbon dioxide
C. A build- up of oxygen
D. None of the above​