<unk> s are organelles that contain digestive enzymes (acid hydrolases). They digest excess or worn out organelles, food particles, and engulfed viruses or bacteria. The membrane surrounding a<unk>  prevents the digestive enzymes inside from destroying the cell.<unk> s fuse with vacuoles and dispense their enzymes into the vacuoles, digesting their contents. They are built in the Golgi apparatus. The name<unk>  derives from the Greek words<unk> is, which means dissolution or destruction, and soma, which means body. They are frequently nicknamed "suicide-bags" or "suicide-sacs" by cell biologists due to their role in autolysis.<unk> s were discovered by the Belgian cytologist Christian de Duve in 1949.
Lysosome
Mitochondrion
Cytoskeleton
Sarcomere
Liposome
Endoplasmic reticulum
Golgi apparatus
Cytoplasm