Cells are considered the smallest unit of life. Cells create living organisms and can be split between either prokaryotic and eukaryotic. We can consider ourselves, humans, as eukaryotes. Human cells consist of membrane bound DNA and various organelles with their own unique purpose. Examples of organelles include, mitochondria, ribosomes, lysosomes, Golgi apparatus, cytoplasm, vacuoles, nucleus, peroxisomes, smooth ER, and rough ER. Plant cells are also considered eukaryotes and in addition to similar organelles as human cells also contain a cell wall, chloroplasts, and a central vacuole. Prokaryotes are used to define mostly bacteria which do not have any organelles or their DNA membrane bound. Prokaryotic cells contain a cell wall, cell membrane, capsule, DNA, ribosomes, and fimbriae and/or flagellum.