| A | B |
|---|
| cell membrane | the thin layer of protein and fat that surrounds the cell. The cell membrane is semipermeable, allowing some substances to pass into the cell and blocking others. |
| cytoplasm | the jellylike material outside the cell nucleus in which the organelles are located |
| Golgi bodies | a flattened, layered, sac-like organelle that looks like a stack of pancakes and is located near the nucleus;packages proteins and carbohydrates |
| lysosome | where the digestion of cell nutrients takes place. |
| mitochondria | The mitochondrion converts the energy stored in glucose into ATP (adenosine triphosphate) for the cell. |
| nucleus | The nucleus controls many of the functions of the cell (by controlling protein synthesis) and contains DNA (in chromosomes); the "brain" of the cell |
| ribosomes | small organelles composed of RNA-rich cytoplasmic granules that are sites of protein synthesis |
| endoplasmic reticulum | transports materials through the cell and produces proteins |
| vacuole | fluid-filled, membrane-surrounded cavities inside a cell. The vacuole fills with food being digested and waste material that is on its way out of the cell. |
| cell wall | thick, rigid membrane that surrounds a plant cell. This layer of cellulose fiber gives the cell most of its support and structure. The cell wall also bonds with other cell walls to form the structure of the plant |
| chloroplast | Photosynthesis (in which energy from sunlight is converted into chemical energy - food) takes place here |
