| A | B |
|---|
| cell membrane | surrounds animal cells |
| cell wall | tough outer covering of plant cell |
| chloroplast | uses sunlight to produce food and oxygen in a plant cell |
| cytoplasm | gooey filler in cell |
| nucleus | control center/stores DNA |
| organ | tissues working together |
| organ system | organs working together |
| tissue | similar cells working together |
| vacuole | stores food and water in a cell |
| oxygen | used in animal cell respiration |
| carbon dioxide | produced in animal cell respiration |
| round cells | carry oxygen & carbon dioxide |
| flat cells | protective covering |
| branching cells | deliver signals |
| skin | largest organ in human body |
| respiration | process that creates energy |
| cilia | hair-like structures that clean airways |
| mitochondria | produce energy |
| leaf, root, stem | plant organs |
| bone marrow | makes red blood cells |
