Answer:
In cell biology, an organelle is a specialized subunit, usually within a cell, that has a specific function.
Step-by-step explanation:
An organelle is a biological structure that performs a distinctive function inside a cell. Organelle literally means “little organs”. As the body is composed of various organs, the cell, too, has “little organs” that perform special functions. In general, they are membrane bound compartments or structures of a cell. In a strict definition, an organelle is a membrane-bound compartment or structure in a cell that performs a special function. In the less-stricter definition, an organelle refers to any cellular structure, whether it is membrane bound or not, that carries a particular function.