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Cell Organelles
| Term | Definition |
|---|---|
| cell membrane | surrounds all cells, acts as a barrier between the inside of the cell and its environment. Regulates what gets inside and out of the cell |
| cell wall | rigid structure surrounding the cell membrane in PLANTS; provides support and protection |
| nucleus | control center of eukaryotic cells; stores the DNA |
| chloroplast | organelle where photosynthesis happens in plants; contains the green pigment called chlorophyll |
| mitochondrion (plural is mitochondria) | organelle where cellular respiration happens in ALL cells; the powerhouse |
| cytoplasm | region between the cell membrane and nucleus; it includes the fluid (jelly) and all the organelles |
| vacuole | stores nutrients, water, and wastes. Very large in plant cells. |
| 1st part of cell theory | All organisms are made up of 1 or more cells |
| 2nd part of cell theory | Cells are the basic units of all organisms |
| 3rd part of cell theory | All cells come from pre-existing cells |
| What is the difference between a plant and an animal cell's vacuole? | Animal cells have many small vacuoles and plant cells have 1 large central vacuole |
| How can you tell the difference between a mitochondrion and a chloroplast in a diagram? | A mitochondrion has folds (wavy lines) inside and a chloroplast has stacks inside |
| Prokaryote | Unicellular organism with no nucleus and the DNA floats around the cytoplasm |
| Eukaryote | More complex organisms with more organelles including a nucleus |
| True/False- You should determine if a cell is plant or animal by its shape and color. | False |
| How should you determine if a cell is a plant or animal cell? | If it has chloroplasts, cell wall, or a large central vacuole, it is a plant cell |
| Chlorophyll | Green fluid inside the chloroplasts that trap sunlight for photosynthesis |
| True/False- Muscle cells will have more mitochondria. | True because muscle cells require a lot of energy |