Organelles are the specialized structures found within a cell that carry out specific functions. There are several synonyms for the term organelles, including cell structures, subcellular structures, cell organelles, cell components, cellular structures, intracellular structures, and cell organs. The various organelles in a cell include the nucleus, mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, peroxisomes, and chloroplasts (in plant cells). Each organelle has a unique structure and function, and the proper function of all organelles is necessary for the survival of the cell. Understanding the synonyms for organelles can make it easier to communicate about different structures and functions within cells.