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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 |