Lysosomes are membrane-bound organelles in cells that contain enzymes responsible for breaking down waste materials and cellular debris. The enzymes within lysosomes, known as hydrolytic enzymes, work best in acidic conditions, typically at a pH of around 4.5 to 5.5. Therefore, lysosomes are most active in acidic environments, which is why they function best under acidic conditions rather than neutral, basic, or both environments.
Lysosomes help in processes like digestion and waste management within cells by breaking down macromolecules such as proteins, nucleic acids, lipids, and carbohydrates.