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Ch. 3 Cells
Cell Organelles
| Question | Answer |
|---|---|
| Cells | The basic unit of structure & function in all living things. |
| Organelles | Tiny structures inside a cell that carry out specific functions within a cell |
| Nucleus | The information center.The “brain” of the cell.Contains the chromatin. |
| Chromatin | Material in cells that contains DNA and carries genetic information. It directs the functions of a cell. |
| Nuclear membrane | It surrounds & protects the nucleus. |
| Nucleolus | Found inside the nucleus. It makes ribosomes. |
| Ribosomes | The site where proteins are made |
| Golgi body | The cell’s “mailroom”. They receive proteins and package them and distribute them to other parts of the cell. |
| Endoplasmic Reticulum | Passageways that carry proteins and other materials from one part of the cell to another. |
| Mitochondria | Energy suppliers of the cell.They release energy stored in food.Cells that need more energy have more mitochondria. |
| Lysosome | Small round structures that contain chemicals to break down food & waste.The recycling centers of the cell. They “clean” the cell. |
| Vacuoles | The storage rooms of the cell.Mostly contain water and food. Very large in plants. |
| Cell Membrane | A protective barrier that surrounds a cell. It regulates what substances enter and leave the cell. |
| Cytoplasm | A gel-like substance found between the nucleus and cell membrane. |
| Cell Wall | Only in Plants!It is like a “skeleton”. It is made of a non-living material called cellulose.It supports and protects. |
| Chloroplast | Only found in plants!This is where photosynthesis happens.They contain a green pigment called chlorophyll. |
| Chlorophyll | Captures sunlight energy and uses it to make carbohydrates (food) for the cell. |