1 Profession: Actor, Screenwriter, Director. 2  Biography: An icon of machismo and Hollywood action heroism, Sylvester Stallone is responsible for creating two characters who have become a part of the American cultural lexicon: Rocky Balboa, the no-name boxer who overcame all odds to become a champion, and...
In general, the functions of lysosomes involve breaking-down i.e. processing to 'make safe' or make use of, or removing from the cell e.g. by exocytosis, useless and potentially harmful materials such as old worn-out parts of the cell or potential threats such bacteria.
Structurally, lysosomes are like a floating garbage bag that contains enzymes capable of digesting molecules. Their external membrane is like a gateway that allows molecules inside of the lysosome without allowing the digestive enzymes to escape into the cell.