Question

As a pathway, glycolysis is an example of a coupled reaction.
It is strictly an anaerobic reaction, in which the energy investment phase is dependent upon

• A. The hydrolysis of ATP to ADP and $P_i$.
• B. The presence of glucose as a substrate.
• C. The presence of oxygen and its conversion to carbon dioxide.
• D. The synthesis of pyruvate.

Answer 1

Answer: (D)

The synthesis of pyruvate.

Glycolysis is an anaerobic reaction, where glucose (6C) is split into 2 molecules of pyruvic acid (3C). During this process 2 ATP molecules are hydrolyzed to convert Glucose to Fructose -1,6 bisphosphate. Here ATP is invested for the breakdown to take place.

So, the correct answer is 'The synthesis of pyruvate'