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Stack #32034
Chapter 14 Cells: The Basic Units of Life
| terms | definitions |
|---|---|
| cell | smallest unit that can perform all life processes |
| cell Membrane | a protective layer that covers the cell's surface and acts as a barrier |
| cytoplasm | the fluid inside the cell and almost all of its contents |
| organelles | one of the small bodies in a cell's cytoplasm that are specialized to perform a specific function |
| 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 |
| DNA | genetic material that carries information needed to make new cells |
| prokaryote | an organism that consists of a single cell that does not have a nucleus..eubacteria and archaebacteria |
| eukaryotes | an organism made up of cells that have a nucleus enclosed by a membrane..include animals, plants,and fungi |
| cell wall | a rigid structure that surrounds the cell membrane and provides support to the cell |
| ribosome | cell organelle composed of RNA and protein;the site of protein synthesis |
| endoplasmic reticulum | a system of membranes that is found in a cell's cytoplasm and that assists in the production, processing and transport of proteins and in the production of lipids |
| mitochondrion | in eukaryotic cells, the cell organelle that is surrounded by two membranes and that is the site of cellular respiration |
| chloroplast | organelles in plant and algae cells in which photosynthesis takes place |
| Golgi complex | cell organelle that helps make and package materials to be transported out of the cell |
| vesicle | a small cavity or sac that contains materials in a eukaryotic cell |
| lysosome | a cell organelle that contains digestive enzymes |
| tissue | a group of similar cells that perform a common function |
| organ | a collection of tissues that carry out a specialized function of the body |
| organ system | a group of organs that work together to perform body functions |
| organism | a living thing;anthing that can carry out life processes independently |
| structure | the arrangement of parts in an organism |
| function | the special, normal, or proper activity of an organ or part |
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