| A | B |
|---|
| cell theory | 3 part theory which summarizes cell biology |
| plasma membrane | made of a phospholipid bilayer, surrounds cell |
| organelles | tiny organs which perform all cell activities |
| nucleus | manages all cell activity |
| eukaryotic cell | plant or animal cell with membrane-bound organelles |
| prokaryotic cell | mostly bacterial, no membrane-bound organelles |
| selective permeability | allowing some things to pass through, but not others |
| phospholipid bilayer | 2 layers of molecules that make up the plasma membrane |
| transport proteins | proteins that allow materials to enter or exit the plasma membrane |
| fluid mosaic model | plasma membrane with components constantly in motion |
| cytoplasm | semi-fluid that fills up the cell |
| cytoskeleton | network of microtubulues that support organelles in the cell |
| ribosomes | manufacture protein, do not have membranes |
| nucleolus | center of nucleus, holds amino acids |
| endoplasmic reticulum | rough and smooth membrane system |
| golgi apparatus | stack of membranes that export things from cell |
| vacuole | storage for water, enzymes and sugars |
| lysosomes | vesicles that have enzymes for digestion |
| centrioles | bundles of microtubules used in cell division |
| mitochondria | makes glucose into cellular energy (ATP) |
| chloroplast | filled with thylakoids and chlorophyll, runs photosynthesis |
| cell wall | thick rigid mesh of fibers, gives plants toughness |
| cilia | tiny hairlike projections used for movement |
| flagella | 1 or 2 long whiplike projections for movement |
