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Discovering Cellls
| Question | Answer |
|---|---|
| Cells | basic unit of structure and function in living things |
| Structure | what an organism is made of and how it is put together |
| Function | processes that enable an organism to stay alive and reproduce |
| Cell Theory | all living things are made of cells cells are the basic unit of structure and function in living things all cells are produced from other cells |
| Compound microscope | two lens, one lens magnifies (convex lens) one lens magnifies the other lens’ magnification. (convex lens) |
| Resolution | sharpness of an image |
| Electron microscope | uses a beam of electron instead if light to produce a magnified image. |
| Organelles | Tiny cell structures that carry out specific functions. |
| Cell membrane | control what substances go in and out of the cell. |
| Nucleus | the cells control center |
| Nuclear Envelope | protective wall around nucleus. |
| Chromatin | strands that contain genetic material that instructs the cell how to grow. |
| Nucleolus | where ribosomes are made. |
| Cytoplasm | the region between the cell membrane and nucleus. |
| Mitochondria | “power houses” of the cell because they convert energy in food molecules to energy the cell use to carry out its functions. |
| Endoplasmic reticulum | maze of passageways that carry proteins and other materials from one part of a cell to another. |
| Ribosomes | small grain like bodies, function as factories to produce proteins. |
| Golgi bodies | receive proteins and other materials. Then they package and distribute them to other parts of the cell. |
| Chloroplasts | capture energy from sunlight and use it to produce food for the plant cell. |
| Vacuoles | A large water filled sac, stores food and other materials. |
| Lysosomes | “cleanup crew” round structures containing chemicals that breakdown material. |