| A | B |
|---|
| cell | smallest unit of life |
| cell characteristics | 1. needs food and H2O 2. uses energy and produces heat 3. eliminates waste products 4. reproduce through cell division |
| nucleus | regulates cell activity |
| chromosomes | 46, store hereditary information |
| centrioles | aid in cell division |
| cell membrane | "skin" of the cell, selectively semi-permeable |
| cytoplasm | jello-like substance within the cell that holds organelles in place |
| ribosomes | produce proteins |
| golgi apparatus | produce carbohydrates |
| smooth endoplasmic reticulum | transportation system within the cell |
| rough endoplasmic reticulum | transportation system within the cell, covered with ribosomes |
| mitochondria | produces energy |
| lysosomes | cleaners of the cell |
| active transport | a way for material to travel in and out of the cell, requires energy and a carrier molecule |
| passive transport | a way for material to travel in and out of the cell, no energy or carrier needed |
| mitosis | cell division of body cells resulting in 2 identical "daughter cells." |
| meiosis | reproduction of sex cells |
