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study system u
| Term | Definition |
|---|---|
| nucleus | the structure in a cell that contains the chromosomes |
| cytoskeleton | The large network consisting of protein fibers and other molecules that gives shape and structure to cells in the body |
| endoplasmic reticulum | a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane. It usually has ribosomes attached and is involved in protein and lipid synthesis. |
| Ribosome | a minute particle consisting of RNA and associated proteins found in large numbers in the cytoplasm of living cells. They bind messenger RNA and transfer RNA to synthesize polypeptides and proteins. |
| Golgi apparatus | a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport. |
| Lysosome | membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids. |
| Mitochandria | an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner layer being folded inward to form layers |
| chloroplast | (in green plant cells) a plastid that contains chlorophyll and in which photosynthesis takes place. |
| vacuole | a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid. |