| A | B |
| cell membrane | allows materials to enter and leave the cell |
| cell wall | provides protection and support |
| cytoplasm | jelly - like material |
| nucleus | control center of the cell |
| nuclear membrane | allow materials to enter and leave the nucleus |
| mitochondria | power house of the cell |
| ribosomes | make protiens |
| vacuoles | store food, water and wastes |
| endoplasmic reticulum | passage ways for materials |
| chloroplasts | sites for photosynthesis |
| lysosomes | break down wastes and old cell parts |