| A | B |
|---|
| organelle | small part of a cell that has a specific function |
| mitochondria | powerhouse of the cell; converts energy in glucose to ATP |
| chloroplast | converts sunlight and CO2 into glucose and O2; in plant cell |
| nucelus | contains DNA; control center of the cell |
| vacuole | stores water and other materials; large one is found in plants |
| cell membrane | two lipid layers; lets things in and out of cells |
| cell wall | made of cellulose, strong and protects; in plant cells |
| ribosomes | where proteins synthesized (made) |
| tissue | a group of cells with the same function |
| organs | groups of different tissues |
| organ systems | many organs working together |
| hormones | molecules used for communication (ex: pheromones); controls timing of growth and development |
| neurons | transmits electrical/chemical signals in the brain |
| cell specialization | each cell has a specific job |
| endoplasmic reticulum (ER) | transports proteins within the cell |
