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Biology Chapter 4.2
| Term | Definition |
|---|---|
| Plasma Membrane | The cell's outer boundary (also known as cell membrane). |
| Cytoplasm | The region of the cell within the membrane that includes the fluid, the cytoskeleton, and all of the organelles except the nucleus. |
| Cytosol | the soluble portion of the cytoplasm, which includes molecules and small particles, such as ribosomes, but not the organelles covered with membranes. |
| Nucleus | In physical science, an atom's central refion, which is made up of protons and neutrons. |
| 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; they 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 that carry out a specialized function of the body. |
| Organ System | A group of organs that accomplish related tasks. |
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DragonT20
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