Nucleus surrounded by a double membrane called the envelope containing pores
Rough endoplasmic reticulum which is a series of flattened sacs enclosed by a membrane with ribosomes on the surface
Smooth endoplasmic reticulum which is a system of membrane bound sacs
Golgi apparatus which is a series of fluid filled, flattened & curved sacs with vesicles surrounding the edges
Mitochondria which are usually oval shaped, bound by a double membrane called the envelope with an inner membrane folded to form cristae and a matrix on the inside
Centrioles which are hollow cylinders containing a ring of microtubules arranged at right angles to each other
Ribosomes which are composed of two sub-units and are the site of protein production
Lysosome which is a vesicle containing digestive enzymes bound by a single membrane