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PCS Liv Env
Cells - CH 7
| Term | Definition |
|---|---|
| cell | basic unit of structure and function in living things |
| cell membrane | thin flexible barrier around the cell; selectively permeable |
| cell wall | rigid layer around the cell membrane of a plant cell |
| chloroplast | uses energy from sunlight to make food molecules |
| cytoplasm | watery material around organelles |
| cytoskeleton | maintains cell shape with a network of protein filaments |
| smooth endoplasmic reticulum | helps make lipids and stores them in tubular like network |
| eukaryote | organism whose cells contain a nucleus (hint: you) |
| golgi bodies | attaches carbohydrates and lipids to proteins using enzymes |
| mitochondria | uses energy from food to make high energy compounds; the cell’s powerhouse |
| nucleus | controls most cell processes and contains DNA; brain of the cell |
| organelle | specialized structures within a cell that perform important cell functions |
| prokaryote | organism whose cells do not contain a nucleus (hint: P = primitive) |
| ribosome | factories for making proteins |
| vacuole | sac like structures for storage of water, salts, proteins and carbohydrates |
| selectively permeable | some substances can pass across and others can't |
| Nuclear Envelope | membrane that encases the nucleus |
| Nucleolus | structure in the nucleus made of RNA and protein |
| Vesicle | transport various items into and out of the cell |
| Lysosomes | break down old cell parts and fight off pathogens |
| Microtubules | small tubular structures that help proteins move |
| centrioles | animal cells only, assist in cell division |
| rough endoplasmic reticulum | transports proteins in tubular like network |
Created by:
cboula
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