Contain a nucleus and membrane-bound organelles
Nucleus surrounded by a double membrane called the envelope with pores
Contain chromatin and a nucleolus for ribosome production
Rough endoplasmic reticulum (RER) with ribosomes for protein folding and processing
Smooth endoplasmic reticulum (SER) for lipid production and processing
Golgi apparatus for protein and lipid processing and packaging, and lysosome production
Mitochondria with inner membrane folds (cristae) for respiration enzymes
Centrioles for cell division
Ribosomes for protein production
Lysosome with digestive enzymes
Cytoskeleton for mechanical strength, transport, and cell movement
