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Week 6
| Term | Definition |
|---|---|
| Cell Membrane | A semi-permeable barrier that surrounds the cell and regulates the movement of substances in and out. |
| Cytoplasm | The jelly-like fluid inside the cell that holds organelles and allows movement of materials. |
| Nucleus | The control center of the cell that contains DNA and directs all cellular activities. |
| Nuclear Envelope | A double membrane that surrounds the nucleus and controls the flow of materials in and out of the nucleus. |
| Nucleolus | A dense region within the nucleus where ribosomes are made. |
| Ribosome | A small structure that builds proteins by linking amino acids together, found in the cytoplasm or on the rough ER. |
| Endoplasmic Reticulum (ER) | A network of membranes involved in protein and lipid synthesis; comes in rough (with ribosomes) and smooth (without ribosomes) forms. |
| Rough ER | Part of the ER covered with ribosomes; helps synthesize and transport proteins. |
| Smooth ER | Lacks ribosomes; synthesizes lipids and detoxifies harmful substances. |
| Golgi Apparatus | A stack of membranes that modifies, packages, and ships proteins and lipids throughout the cell. |
| Mitochondrion | The powerhouse of the cell that produces ATP through cellular respiration. |
| Lysosome | A sac filled with digestive enzymes that breaks down waste, old organelles, and foreign invaders. |
| Peroxisome | An organelle that breaks down fatty acids and neutralizes toxins, including hydrogen peroxide. |
| Centriole | A cylindrical structure involved in organizing microtubules during cell division. |
Created by:
DaeRuth
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