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First Period
Green Book Ch 1 Lesson 2
| Term | Definition |
|---|---|
| Cell wall | Strong wall that protects plant cells |
| Cell membrane | The membrane that surrounds the cell and separates it from the outside environment |
| Nucleus | large, membrane-bounded organelle that contains genetic materials |
| Organelle | the tiny organs of the cell, a cell structure that has distinctive functions |
| Ribosome | a minute-sphere shaped particle composed of protein and RNA |
| Cytoplasm | the contents of a cell surrounded by a cell membrane but not including the nucleus |
| Mitochondria | the organelle where chemical energy is produced cellular respiration |
| Endoplasmic reticulum | the membrane-bound organelle in cells involved in protein synthesis, lipid synthesis and calcium storage |
| Golgi apparatus | a vital organelle that serves as the processing and packaging center of eukaryotic cells |
| Vacuole | structure inside cell that contains water |
| Lysosome | organelle containing digestive enzymes used for digestion |
| Multicellular | organisms with more than one cell |
| Unicellular | organisms with one cell |
| Tissue | group of cells that have the same structure and function |
| Organ | specialized, self-contained structure that performs specific function or set of functions, made of tissue |
| Organ system | collections of organs with connected tasks |
| Specialized cells | cells with particular bodily structures and functions |
| Division of labor | dividing functions between cells and organs |
| Inside the nucleus | cell's genetic material (DNA), chromatin, nucleolus |
| Difference between animal and plant cell structures | plant cell shape is often rectangular, animal cell shape is round or irregular; no cell wall in animals, chloroplasts in plants, not animals, |
| What does endoplasmic reticulum does for ribosomes | helps make specific proteins |
| Where ribosomes made and why so important | made in the nucleolus, help turn mRNA into proteins essential for all cell functions |