Answer:
The stages of cellular respiration are - glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.
The products at each step are -
Glycolysis - 2 ATP, 2 NADH, and 2 pyruvate molecules
pyruvate oxidation - acetyl CoA and NADH
Krebs cycle - carbon dioxide, NADH, FADH2, and ATP or GTP.
oxidative phosphorylation - H2O, ATP, NAD+, and FAD+.
Reactants are used at each step -
Glycolysis - glucose
pyruvate oxidation - Pyruvate and CoA
Krebs cycle - Pyruvate
oxidative phosphorylation - the electron donors such as NADH and FADH2
The end product of respiration:
carbon dioxide and water are final products
