| A | B |
|---|
| prokayotic cells | cell without a memebran around their hereditary material |
| eukaryotic cells | cell that have a memebrane aroung their heredetary material |
| organelles | tiny "organ like" structures found within the cell that enable the cell to carry out life processes |
| cell wall | found most commonly in bacteria and plant cells; its job is to support and protect the cell |
| cell membrane | found in all cells; its serves as the doorway of the cell |
| nucleus | found in eukaryotic cells; it acts as the control center of the cell |
| nuclear membrane | surrounds the nucleus and allows materials to pass in and out of the nucleus |
| chromosomes | direct the activities of the cell, including growth and reproduction |
| chromatin | a form of hereditary material that is made up of proteins and DNA |
| nucleolus | the "little nucleus" that makes ribosomes |
| ribosomes | the protein factories of the cell; they are needed for reproduction because they make RNA |
| endoplasmic reticulum | the tube like transportation system of the cell; transports proteins |
| cytoplasm | the jellylike substance that contains all of the cell's organelles |
| mitochondria | the powerhouse of the cell; supplies most of the cells energy |
| Golgi body | a sac that stores proteins which must be moved out of the cell |
| vacuoles | they are storage tanks of the cell, storing food, water, and wastes |
| lysosomes | common in animal cells, they serve as the cell's clean-up crew by aiding in digestion |
| chloroplasts | in plants and some bacteria, these structures contain chlorophyll, a chemical used to capture sunlight in order to make food for the organism |
| division of labor | the work of keeping an organism alive is divided among the different parts of the body and the cells that make them |
| tissues | cells that are simialar in structure and function and are working together to help the organism live |
| organs | groups of tissues that work together |
| organ systems | groups of organs that work together to perform a specific function for the organism |
