Organelles

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Eukaryotic v. Prokaryotic: A eukaryotic cell has a membrane enclosed nucleus and other membrane enclosed organelles. A prokaryoitc cell lacks a membrane enclosed nucleus, and other membrane enclosed organelles. Bacteria and Archaea are the only domains with prokaryotic cells.

The ribosomes on the E.R. make it the rough E.R. rather then the smooth E.R. The smooth ER manufactures lipids. Ribosomes make proteins. Lysosomes are a sac of enzymes that digest things. The membrane allows things to go in and out. The mitochondria makes energy. The centrioles help the cell divide.

For more information about cell structure (definitions) go to the Cell Structure home page.