Which of the following describes a lysosome?
a) A nonmembranous structure that is essential for mitosis.
b) A double-membraned organelle that is the powerhouse of the cell.
c) A tiny, membranous sac that contains enzymes that degrade worn cell parts and debris.
d) A bilayer of lipid in which proteins are embedded.
e) A complex network of interconnected membranes that is a communication system in the cell.