In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

This structure's namesake trafficking regulator gene is mutated in sufferers of ChediakHigashi syndrome, in which these structures are both abnormally enlarged and reduced in number. Proteins targeted to this organelle have mannose 6-phosphate residues. Tay-Sachs disease is characterized by the accumulation of gangliosides in these organelles, which can fuse with phagosomes. Found only in animal cells, these organelles have a pH of approximately five, and are prone to storage diseases. FTP name this cell organelle that has digestive enzymes for breaking down certain cell parts.
Science