| A | B |
|---|
| cell wall | strong and stiff layer; it protects and supports plant cells |
| cellulose | what the cell wall is made of |
| cell membrane | thin covering that has holes and encloses the cell; it controls what moves in and out |
| nucleus | controls all the activities of the cell; "boss" |
| nuclear membrane | allows materials to pass into or out of the nucleus |
| chromosomes | genetic material found in the nucleus; contains DNA |
| nucleolus | small circular structure within the nucleus; said to produce ribosomes |
| endoplasmic reticulum | transport system of the cell |
| cytoplasm | thick, jellylike substance; most life functions take place here |
| ribosomes | small grain-like bodies made mostly of RNA; attached to ER |
| mitochondria | powerhouse of the cell; rod-shaped organelle found in the cytoplasm |
| vacuoles | sac-like organelle found in the cytoplasm; stores food and waste products |
| chloroplasts | green structures in plant cells; responsible for the production of food |
| chlorophyll | green pigment found in chloroplasts; used for photosynthesis |
| carbon dioxide | what a plant makes as food |
| oxygen | what a plant makes as a waste gas |
| water and carbon dioxide | two materials needed for photosynthesis |
| photosynthesis | food making process in plants |
| cell | simplest form of life |
