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Science8/1st 9 weeks
Cells
| Term | Definition |
|---|---|
| Cell | The basic unit of structure & function in living things |
| Organelle | A tiny cell structure that carries out a specific function within the cell |
| Cell Wall | A rigid layer of non living material the surrounds the cells of plants & some other organisms |
| Cell Membrane | A cell structure that controls which substances can enter or leave the cell |
| Nucleus | Directs all the cell's activities ("brain" of the cell) |
| Mitochondria | Rod-shaped cell structures that produce most of the energy needed to carry out the cell's functions (Powerhouse) |
| Ribosome | Where proteins are made (comes from the nucleus) |
| Endoplasmic reticulum | A cell structure that forms a maze of passageways in which proteins &other materials are carried from one part of the cell to another |
| Golgi body | A structure in a cell that receives proteins & other newly formed materials from the endoplasmic reticulum, packages them, & distributes them to other parts of the cell |
| Vacuoles | The storage area of a cell (water, food, waste) |
| Lysosome | A small round cell structure that contains chemicals that break down large food particles into smaller ones (cells clean-up crew) |
| Chloroplasts | Capture energy from the sunlight & use it to produce food for a plant cell (traps sunlight) |
| Nucleolus | Where ribosomes are made (inside of the nucleus) |
| Cytoplasm | The area between the cell membrane & the nucleus. It contains a gel-like fluid in which many different organelles are found |
| 1. Cell wall 2. Chloroplast | Parts of a cell that a plant has, but an animal does not |
| Cell part that an animal has, but a plant cell does NOT | Lysosome |
| The vacuole of a plant is ___________ than that of an animal. | bigger |
| Prokaryotic cell | Does NOT have a nucleus that contains genetic material. The genetic material looks like a tangled string, is found in the cytoplasm. Example: Bacteria |
| Eukaryotic Cell | A cell that has a nucleus that contains genetic material. The cell has a nucleus enclosed with a nucleus membrane. Example: Plants & Animals |
| Organization of many-called organism: | 1.Cell 2.Tissue 3.Organ 4.Organ System 5.Organism |
Created by:
mgrant
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