Final answer:
Lysosomes contain oxygen-independent enzymes like lysozyme and acid hydrolases that kill pathogens and digest non-functioning organelles. Macrophages use lysosomes to destroy pathogens through phagocytosis.
Step-by-step explanation:
Lysosomes contain oxygen-independent enzymes that kill pathogens. One of these enzymes is lysozyme, which breaks down the cell walls of bacteria. Another enzyme found in lysosomes is acid hydrolases, which catalyze hydrolysis reactions and digest non-functioning organelles, macromolecules, and pathogens. Lysosomes also use their enzymes to destroy pathogens that enter the cell through a process called phagocytosis, as seen in macrophages.