| A | B |
|---|
| Unicellular | An organism with one cell |
| Multicellular | An organism with many cells |
| Prokaryotic | Describes a cell without a nucleus |
| Eukaryotic | Describes a cell with a nucleus |
| Cell Wall | In a plant cell, gives it structure |
| Cell Membrane | In all cells, lets things in and out of cell |
| Cytoplasm | Jelly-like fluid in cells |
| Nucleus | Cell's control center |
| Nuclear Membrane | Lets things in and out of nucleus. Organelle that disappears during mitosis |
| Ribosomes | Makes proteins |
| ER | Cell's highway for proteins |
| Mitochondria | Powerhouse of the cell. Site of cellular respiration |
| Chloroplast | Site of photosynthesis |
| Vesicles | Small storage organelle |
| Vacuole | Large storage organelle |
| Lysosomes | Organelle with digestive enzymes |
| Tissue | A group of cells |
| Organ | A group of tissues |
| Organ system | A group of organs |
| Organism | A living thing; a group of organ systems |
| specialization | An advantage of multicellular organisms; each cell does a job |
| function | The job each structure does |
