What is the primary function of lysosomes in a cell?

Lysosomes are often referred to as the cell's "digestive system" because their primary function is the digestion of cellular waste. They contain a variety of enzymes that break down macromolecules, such as proteins, lipids, and polysaccharides, into smaller molecules that can be reused or expelled by the cell. This process is crucial for maintaining cellular health by removing damaged or unneeded components, recycling materials, and participating in cellular repair processes.

The presence of digestive enzymes within lysosomes allows them to efficiently process and eliminate substances that could be harmful to the cell, thus playing a vital role in cellular homeostasis. By efficiently managing waste, lysosomes contribute to the overall function and longevity of the cell.