Question

NAME all the steps of Respiration. What is Produced in Each Step? What are the

Reactants Used in each step? What is the Final Product?

Answer 1

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