Flashcards: Cell Parts
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Created by:
taragray on September 10, 2007
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Groups:
Mrs. Stafford's Life Science Class
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Terms | Definitions |
|---|---|
 cell wall | A rigid layer of nonliving material that surrounds the cells of plants and some other organisms |
| cell membrane | The outside boundary of a cell that controls which substances can enter or leave a cell |
| nucleus | The cell's control center, it directs all cell activities |
| nuclear membrane | It covers, protects and filters the nucleus |
| chromatin | A material in cells that contains DNA and carries genetic information |
| nucleolus | A small object within the nucleus that helps to make ribosomes |
| cytoplasm | The bulk of the cell that contains all the organelles |
| organelle | The tiny parts within a cell that carry out specific functions within the cell |
| mitochondria | They produce most of the energy cell needs to carry out its function |
| endoplasmic reticulum | They carry proteins and other materials from one part of the cell to another |
| ribosomes | Tiny grainlike structures used to make proteins |
| golgi bodies | They receive proteins and other newlly formed materials from the ER, package them, and distribute them to other parts of the cell |
| vacuoles | They store food, water, and waste materials in cells |
| lysosomes | They contain chemicals that break down large food particles and old cell parts |
| chloroplasts | They capture energy from sunlight and use it to produce food for the cell |
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