| A | B |
|---|
cell membrane,  | surrounds the cell |
| nucleus | the central part of the cell |
| nucleic acids | information in a chemical form |
| chromosomes and nucleoli | structures found in the nucleus |
| Chromosomes are composed of | nucleic acid and protein |
| Chromosomes contain | genes |
| Genes guide the activities of | each individual cell |
| nuclear membrane | surrounds the nucleus |
| cytoplasm | semifluid inside the cell |
| Ribosomes | protein factories |
| endoplasmic reticulum | transfers materials within the cell |
Mitochondria,  | the "powerhouses" of the cell |
| Golgi apparatus | processes and transports proteins |
| Centrioles | divides cells |
| Lysosomes | contains enzymes that digest bacteria |
| mitosis | cell multiplication |
