A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria.

They are member bound vesicular structure formed by the packaging in the golgi body.
They contain hydrolytic enzyme (lipases, protease, carbohydrases).act in the acidic medium.they digest the protein, carbohydrates,lipid.

Lysosomes are membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids.

A lysosome is an intracellular acidic compartment, mostly spherical or ovoid, found mainly in eukaryotic cells and serving as the cell’s “digestive system”. They contain a variety of hydrolytic enzymes that break down substrates such as proteins, lipids, nucleic acids, and carbohydrates. Far from waste disposal, their job is to provide cellular digestion and recycling by chewing away cellular waste, damaged organelles, and foreign substances to help preserve the cell’s overall health and function.
Lysosomes also serve important roles in autophagy, a process in which the cell utilizes these organelles to digest its components, and phagocytosis, as cells of the immune system such as macrophages engulf and destroy pathogens. Lysosomal action is also crucial for apoptosis, or programmed cell death, as they chop up the cellular framework as part of an ordered death process for the cell. Lysosomes create an acidic environment to secure the most optimum function of their hydrolytic enzymes. The absence of lysosomes in cells would result in functional waste accumulation that could also lead to cell damage.

Lysosomes are very small cell organelles.The lysosome function is to digest waste.
Lysosomes keep the cell clean of foreign materials.Also Known as suicidal bag of cell.