Question

What is the net ATP synthesis during glycolysis under anaerobic conditions?

• A. 4 ATP
• B. 8 ATP
• C. 2 ATP
• D. 6 ATP

Hint:

Anaerobic glycolysis yields a net gain of 2 ATP per glucose molecule—remember the 2 ATP are consumed early in the process.

Answer 1

The Correct Option is C

During anaerobic glycolysis, glucose is broken down into pyruvate (or lactate in animals), generating 4 ATP molecules, but 2 ATP are consumed during the initial steps. Therefore, the net ATP gain is: \[ \text{Net ATP} = 4 - 2 = 2 \text{ ATP} \] This process does not involve oxygen and is the primary source of energy in anaerobic conditions.