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Chapter 7 part 1
| Question | Answer |
|---|---|
| cells | the basic unit of life |
| cell theory | fundamental concept of biology |
| nucleus | a large membrane-enclosed structure that contains the cells genetic material in the form of DNA |
| eukaryotes | cells that contain nuclei |
| prokaryotes | cells that do not contain nuclei |
| organells | "little organs" |
| cytoplasm | the portion of the cell outside the nucleus |
| nuclear envelope | layer of two membranes that surround the nucleus of a cell |
| chromatin | the granular material you can see in the nucleus |
| chromosomes | when a cell divides, however, chromatin condenses |
| nucleolus | small, dense region within most nuclei in which the assembly of proteins begins |
| ribosomes | small particles of RNA and protein found throughout the cytoplasm |
| endoplasmic reticulum | eukaryotic cells also contain an internal membrane system |
| golgi apparatus | Proteins produced in the rough ER move next into an organelle |
| lysosomes | small organelles filled with enzymes |
| vacuoles | saclike structured cell that stores materials such as water, salts, protiens, and carbohydrates |
| mitochondria | organelles that convert the chemical energy stored in food into compounds that are more convenient for the cell to use |
| chloroplasts | organelles that capture the energy from sunlight and convert in into chemical energy in a process called photo synthesis |
| cytoskeleton | a network of proyein filaments that helps the cell to maintain its shape |
| centrioles | located near the nucleus and help to organize cell division |
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victoryveronica3
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