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Cells system
Sciences
| Term | Definition |
|---|---|
| Microscope | An instrument that makes small objects look larger. |
| Cell Theory | A widely accepted explanation of the relationship between cells and living things. |
| Distinguish | Two separate structures that are close together. |
| Organelle | is a tiny cell structure that carries out a specific function within the cell |
| Structure | The arrangement of and relations between the parts or elements of something complex. |
| Function | An activity or purpose natural to or intended for a person or thing |
| Cell Wall | A rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants it consists mainly of cellulose. |
| Cell Membrane | the semipermeable membrane surrounding the cytoplasm of a cell. |
| Cells | cells are the basic building blocks of all living things. |
| Cytoplasm | Fills the region between the cell membrane and the nucleus |
| nucleus | is a large oval organelle that contains the cells genetic material in the form of DNA. |
| Mitochondeia | Convert energy stored in food to energy the cell can use to live and function. |
| Chloroplast | Is an organelle in the cells of plants and some other organisms that captures energy from sunlight and changes it to an energy. |
| Vacuole | A like organelle that stores,water,food or other materials needed by the cell |
| Selectively permeable | Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell |
| Diffusion | is the process by which molecules move from an area of lower concentration |
| Osmosis | a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane |
| Maintain | cause or enable (a condition or state of affairs) to continue. |
| endocytosis | the taking in of matter by a living cell by invagination of its membrane to form a vacuole. |
| exocytosis | a process by which the contents of a cell vacuole are released to the exterior through fusion of the vacuole membrane with the cell membrane |
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