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Vocab Lesson 4.2
Introduction to Cells
| Term | Definition |
|---|---|
| Plasma Membrane | Or cell membrane, the cell's outer boundary |
| 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 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 organisms 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 that carry out a specialized function of the body |
| Organ System | A group of organs that perform related tasks |
Created by:
GutzwillerL19
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