Final answer:
Peroxisomes are small organelles enclosed by single membranes. They carry out oxidation reactions to break down fatty acids and amino acids. They self-replicate by growing larger and then dividing.
Step-by-step explanation:
Peroxisomes are small, round organelles enclosed by single membranes. They carry out oxidation reactions that break down fatty acids and amino acids. They also detoxify many poisons that may enter the body. Unlike lysosomes, peroxisomes self-replicate by growing larger and then dividing.