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MB 4.2
MB Chapter 4, Section 2
| Term | Definition |
|---|---|
| plasma membrane | cell membrane, the cell's outer body |
| cytoplasm | the region in the cell within the membrane that includes the fluid, the cytoskeleton, and all of the organelles except the nucelus |
| cytosol | the soluble portion of the cytoplasm, which includes molecules and small particles, such as ribosomes, but the organelles covered with membranes |
| nucleus | an atom's central region, which is made up of protons ands neutrons. in a eukaryotic cell, a membrane-bound organelle that contains the cell's DNA and that has a role in processes such as growth, metabolism, and reproduction. |
| prokaryote | a single-celled organism that has no nucleus and has no membrane-bound organelles; examples include bacteria and archaea |
| eukaryote | an organism made up of cells that have a nucleus enclosed by a membrane, multiple chromosomes, and a mitotic cycle; eukaryotes include animals, plants, and fungi but not bacteria or archaea |
| organelle | one of the small bodies that are found in the cytoplasm of a cell and that are specialized to perform a specific function |
| tissue | a collection of specialized cells and cell products that perform a specific function |
| organ | a collection of tissues tat carry out a specialized function of the body |
| organ system | a group of organs that accomplish related tasks |
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simmonsr20
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