What are the three major steps of cellular respiration?

The three major steps of cellular respiration are

Glycolysis

The Kerb's cycle

The Electron Transport Chain

Explanation:

Glycolysis: is a metabolic pathway that converts glucose into pyruvate and a hydrogen ion, it's an anaerobic process

The Kreb's cycle : is a series of chemical reaction used by all aerobic organisms in order to release stored energy through the oxidation of acetyl - CoA

The Electron Transport chain : is a series of complexes that transfer electrons from an electron donor to an electron acceptors via redox - reaction