| Term | Definition |
| scientific theory | every organism is make of cells and every cell comes from another cell |
| cell | basic building block of a structure |
| protoplasm | all living material in both plant and animal cells |
| cell membrane | thin, holds cell parts together; allows to shape under pressure |
| cell membrane | controls movement of materials in and out of a cell |
| cytoplasm | all living materials of the cell outside the nucleus |
| cytoplasm | jelly like, constantly moving |
| nucleus | control of the cell |
| nucleus | controls all cell activities |
| nuclear membrane | a thin membrane that separates the nucleus from the rest of a cell |
| chromosomes | inside nucleus |
| chromosomes | passes new traits to other cells |
| nucleolus | found in nucleus; also called little nucleus |
| nucleolus | making RNA and ribosomes |
| endoplasmic reticulum(ER) | maze of tubular passageways; connects cell membrane with nucleus membrane |
| ribosomes | tiny grain like particles |
| ribosomes | where protein is made |
| ribosomes | made in the nucleus |
| ribosomes | some attched to ER |
| mitochondria | power house of cell |
| mitochondria | brakes down sugar and water; gives off energy |
| golgi bodies | stores and releases chemicals into cells; secretion and absorption |
| lysosomes | found usually in animals |
| lysosomes | involves with digestive activity of the cell |
| vacuole | liquid filled sacs; stores water and dissolves materials |
| vacuole | plant cells are larger than animals |
| chloroplasts | tiny discs that contain chlorophyll |
| chloroplasts | traps energy from light; used to make food |
| chloroplasts | mostly found in leaves and stems |
| cell wall | nonliving layer that surrounds the cell membrane; made of cellulose |
| cell wall | gives protection and support; grow too tall |