Question

What is common in common pathway of aerobic respiration

• A. Glycolysis in both aerobic and anaerobic respiration
• B. Krebs cycle common with HMP
• C. Terminal oxidation in both aerobic and anaerobic respiration
• D. Krebs cycle in both aerobic and anaerobic respiration

Answer 1

The correct option is A Glycolysis in both aerobic and anaerobic respiration

Aerobic respiration is the oxidative breakdown of respiratory substrates with the help of atmospheric oxygen. It takes place in three steps: Glycolysis, Kreb's cycle and electron transport chain. Anaerobic respiration is the breakdown of respiratory substrates in the absence of atmospheric oxygen. The first step of aerobic respiration as well as anaerobic respiration is same and takes place in the cytoplasm of cells. Glycolysis is the common pathway of both the processes in which glucose is broken down anaerobically into two molecules of pyruvic acid.

Thus, the correct answer is option A.