Question

In respiration the energy is produced during the process of

• A. Glycolysis
• B. Krebs cycle
• C. Glycolysis and Krebs cycle
• D. Ornithine cycle

Answer 1

The correct option is C Glycolysis and Krebs cycle

Glycolysis is the first step of respiration which converts the glucose molecules into two molecules of pyruvate along with the production of 8 ATP. The two pyruvate molecules produced by the glycolysis enters the Krebs cycle. Each molecule of pyruvate produces 15 ATP. So total 30 ATP is formed during the Krebs cycle. Total 38 ATP is formed during the aerobic respiration.

So, the correct answer is option C.