| Term | Definition |
|---|---|
| cell | the smallest unit that can perform functions necessary for life |
| cell membrane | a layer that protects and covers the cell |
| nucleus | an organelle that contains the cell's DNA |
| organelles | small bodies in the cell cytoplasm that performs a specific function |
| prokaryote | one celled organism that does not have a nucleus. 2 types: bacteria and archaea |
| eukaryotes | multicellular organisms with a nucleus. they are the largest of the two types |
| cell wall | stiff structure that supports the cell and surrounds the cell membrane |
| ribosomes | organelles that make protein |
| endoplasmic reticulum | a system of membranes where chemical reactions take place. it is the cell's delivery system |
| mitochondrion | organelle that breaks down sugar to make energy |
| vesicle | a small sac that surrounds material to be moved |
| Golgi complex | the organelle that packages and distributes protein. "the post office" of the cell |
| lysosomes | organelles that contain digestive enzymes |
| vacuole | a vesicle |
| organism | anything that can perform life processes by itself |
| tissue | a group of cells that work together to perform a specific job |
| organ | 2 or more tissues working together to do a certain job |
| organ system | a group of organs working together to do a job |
| function | the job an organism does |
| structure | the arrangement of parts in an organism |
