Final answer:
Lysosomes contain digestive enzymes and break down lipids, carbohydrates, and proteins, with the correct answer to the function of lysosomes being D. Lysosomes break down lipids, carbohydrates, and proteins.
Step-by-step explanation:
Lysosomes are specialized organelles within eukaryotic cells that perform the critical function of degrading cellular waste and foreign matter. Containing digestive enzymes, lysosomes are able to break down various biological molecules, including lipids, proteins, and carbohydrates. When a cell engulfs bacteria or cellular debris through phagocytosis, the matter is contained within a vesicle which then fuses with a lysosome. The enzymes within the lysosome proceed to digest the contents, breaking them down into simpler molecules that can either be used by the cell or expelled as waste.
In answer to the multiple-choice question posed, the correct function of lysosomes is: D. Lysosomes break down lipids, carbohydrates, and proteins. This function is essential not only for the recycling of cellular materials but also for the immune response against pathogens.