Question

the direct energy source for glycolysis
sucrose
acetic acid
nad+
starch
nadh
glucose
atp
pyruvic acid

Explanation:

Glycolysis is the metabolic pathway that converts glucose into pyruvate. Glucose is the starting - molecule and the direct energy source for glycolysis. ATP is used and produced during glycolysis but is not the direct energy source, and the other substances listed are not the direct energy source for this process.

Answer:

glucose