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Bio Test
Vocab for bio test
Term | Definition |
---|---|
Cell Theory | 1. All living things are made of one or more cells. 2. Cells are the basic units of structure and function in organisms. 3. All cells arise from existing cells. |
Cell Membrane | Outer layer that encloses the cell and separates the outside of a cell from the cell interior. |
Cytoplasm | The material inside a cell. |
Cytoskeleton | Tiny fibers that hold cell organelles in place. |
Ribosomes | Cellular structures on which proteins are made |
Prokaryote | Single cell organism that lacks a nucleus and other internal compartments. |
Cell wall | Solid wall made of proteins and other nutrients that surround the cell membrane. |
Flagella | Long thread like structures that enable movement in cells. |
Eukaryote | An organism who's cells have a nucleus. |
Nucleus | An internal compartment that houses the cell's DNA. |
Organelle | A structure that carries out specific activities in a cell. |
Cilia | Short hair like structures that protrude from the surface of some Eukaryotic cells. |
Phospholid | A lipid made of a phosphate group and two fatty acids. |
Lipid Bilayer | In a cell membrane, the phospholipids are arranged in a double layer. |
Golgi Apparatus | A set of flat membrane bound sacs that serves as the packaging and distribution center of the cell. |
Lysomes | Small spherical organelles that contain one cell's digestive enzymes. |
Mitochondria | An organelle that harvests energy from organic compounds to make ATP, the primary cell energy. |
Prokaryotic Cell Features | No nucleus, has a cell wall, and has no internal structure. |
Eukaryotic Cells | Has a nucleus, does not have a cell wall, and has internal structure. |
Diffusion | The movement of a substance form a high area of concentration to a low are of concentration. |
Osmosis | The diffusion of water through cells. |
Hypertonic Solution | Solution has less density than cell |
Isotonic Solution | Solution has same density as cell |
Hypotonic Solution | Solution has a greater higher density than cell |