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Sekas 2.2 Vocab
2.2 Cell Structure & Function Life Science Vocab
| Term | Definition |
|---|---|
| prokaryote | single celled organism, that does not have a nucleus or membrane bound organelles |
| eukaryote | cells that contain a nucleus and membrane-bound organelles such as mitochondria and nucleus. Can be multi-cellular or unicellular |
| organelle | a tiny cell structure that carries out a specific function within the cell |
| cell membrane | part of all cells - a flexible covering that surrounds the cell and controls which substances pass into and out of the cell |
| cell wall | a rigid layer outside the membrane that surrounds some cells. It helps protect and support the cell |
| cytoplasm | a clear gel like substance that fills the cell |
| nucleus | a large round structure, where the DNA is held. It is the largest organelle |
| ribosomes | small round organelles that produce proteins |
| mitochondria | organelles that break apart glucose which releases energy that the cell can use to live and function - the powerhouse of the cell |
| chloroplast | a green structure in plants that converts light energy into glucose in the process called photosynthesis |
| vacuole | plant cells have one or more of these large, membrane bound sacs to store water, food, materials, or waste. Some animal cells have small versions of these sacs. |
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brandi.sekas