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| organelle |  a tiny cell structure that carries out a specific function within a cell |
| nucleus | the control center of the cell that directs the cell's activities; it contains the chemical instructions that direct all the cell's activities (DNA) |
| cell membrane | thin, flexible barrier around a cell, it regulates what enters and leaves the cell |
| cytoplasm | The area inside a cell between the nucleus and the cell membrane, where organelles can be found |
| chloroplasts | organelles that capture energy from the sunlight and use it to produce food for the cell |
| cell wall | In plant cells, this stiff wall surrounds the cell membrane, giving the cell a rigid, boxlike shape. |
| ribosome | the organelle in which amino acids are hooked together to make proteins |
| endoplasmic reticulum | the organelle that makes lipids, breaks down drugs and other substances, and packages proteins for the Golgi complex |
| mitochondria | the organelle that breaks down food molecules to make energy available (ATP) |
| Golgi complex | the organelle that processes and transports proteins and other materials out of the cell |
| vacuole | the organelle that stores water and other materials |
| lysosome | the organelle that digests food particles, wastes, cell parts, and foreign invaders |