Final answer:
Acetate, NADH, and H+ ions are byproducts of the microsomal ethanol oxidizing system (MEOS), while water and oxygen are byproducts of the catalase pathway during the detoxification processes in the liver after ethanol ingestion.
Step-by-step explanation:
The byproducts of the microsomal ethanol oxidizing system (MEOS) and the catalase pathway are similar in some respects. For MEOS, ethanol is processed in the liver with the production of acetate, NADH, and H+ ions as byproducts of the reaction where acetaldehyde is an intermediate that gets converted to acetate. The catalase pathway, which occurs in peroxisomes, involves the catalase enzyme breaking down hydrogen peroxide into water (H₂O) and oxygen (O₂), as illustrated by the reaction CATALASE → 2H₂O + O₂. These pathways play a role in the detoxification processes in the liver, especially after ethanol ingestion.