| A | B |
| cell wall | tough, rigid outer covering that protects cells and gives them shape |
| cell membrane | protective layer surrounding the cell |
| cytoplasm | a gelatinlike substance that fills a cell |
| ribosomes | small structures on which a cell makes its own protein |
| organelles | structure in the cytoplasm of a eukaryotic cell that can act as a storage site, process energy, move materials, or manufacture substances |
| nucleus | organelle that controls all cell activites, where heredity material made of DNA is stored |
| chloroplasts | green organelles in the cytoplasm in a plant cell that makes food |
| mitochondria | cell organelle where food is broken down, which releases energy |
| endoplasmic reticulum | cytoplasmic organelle that moves materials around in a cell and is made up of a complex series of folded membranes |
| golgi bodies | stacked, flattened membranes that sort proteins and other cellular substances and package them into vesicles |