| Term | Definition |
| cell | the smallest part of a living thing or a basic unit of all living things |
| protist | a large group of mostly single celled organisms that have traits of animals, plants, or both |
| 2 kinds of protists | protozoa and algae |
| protozoa | a protist with animals traits |
| algae | a protist with plant trait |
| cell wall | a rigid structure that gives plant cells their shape |
| cell membrane | the thin layer than holds the cell together and lets substances pass in and out of the cell |
| cytoplasm | the watery gel inside a cell that holds various parts |
| nucleus | the center of the cell that controls its activitys |
| chomosomes | structure inside the necleus that aremade up of genes |
| vacuoles | spaces in the cytoplasm that store food and water |
| mitochondre | structures that release energy from food |
| chlorplasts | green parts of the plant cell that contains chlorophyll |
| chlorophyll | the green substance plants use to make food (only plant cells) |