| A | B |
| nucleus | the control center of the cell |
| nucleolus | small circular structure(s) within the nucleus; synthesizes ribosomes |
| chromosomes | genetic material found in the nucleus |
| mitochondria | where energy in the form of ATP is produced |
| ribosomes | where proteins are made |
| endoplasmic reticulum | transport system in the cell (rough contains ribosomes and smooth does not) |
| golgi apparatus | packages up protein |
| lysosome | special type of vacuole that breaks down large molecules and cell parts |
| chloroplast | where photosynthesis occurs |
| cell membrane | semi-permeable; flexible barrier that controls what moves in and out of the cell |
| cell wall | protects and supports plant and bacteria cells |
| eukaryote | cell that has a membrane-bound nucleus |
| prokaryote | a cell with no nuclear membrane and few (if any) membrane bound organelles |
| vacuole | stores wastes, water, food |
| cytoplasm | jelly-like substance that holds the organelles in place |
| organelle | specialized structure within a cell |
| marker protein | identifies the cell |
| channel protein | used to transfer moelcules in and out of the cell |
| receptor protein | receives and transfers information across the cell membrane |
| hydrophobic | water fearing ex. lipids |
| hydrophilic | water loving |
| polar | unequal distributio of electrons ex. water |
| nonpolar | equal distribution of electrons ex. lipids |
| phosphate head | polar; water loving portion of cell membrane |
| lipid tail | nonpolar; water fearing portion of cell membrane |
| phospholipid bilayer | also known as the cell membrane |
| bilayer | two layers |
| fluid mosaic model | description of the cell membrane that means it is moving not stationary |