| Term | Definition |
| Cell Membrane | A mosaic of 2 layers of PHOSPHOLIPIDS, 8nm thick, controls traffic in and out, selectively permeable |
| Nucleus | Contains more of the genes in the cell, it is the control center, manufactures parts to make ribosomes, and its pores allows materials to exit. |
| Ribosomes | Build a cells protein and contain two sub-units of of RNA and protein. |
| Smooth Endoplasmic Reticulum | manufactures membranes and performs other biosynthetic functions: lacks ribosomes, rich in ensymes that synthesize lipids. |
| Rough Endoplasmic Reticulum | manufactures membranes and performs other biosynthetic functions; has bibosomres attached to the outside and is abundant in cells that secret proteins |
| Golgi Apparatus | Finishes, sorts, and ships cell products. Is extensive in cells specialized for secretion. |
| Lysosomes | digestive compartments. Membrane bound sac of hydolitic enzymes that digest micromolecules. Recycle protein, fat, polysaccharides and nucleic acids. |
| Mitochondria | Power house of the cells, have all the enzymes needed to make ATP, contain DNA, and are self-reproducing |