| A | B |
|---|
| light microscope | light passes through one or more lenses to produce an enlarged image of a specimen |
| objective lens | lens that is closest to the specimen |
| ocular lens | lens that is closest to the eye on a scope |
| stage | the platform located below the objective lens |
| body tube | extends from the ocular lens and holds the lenses at the proper distance |
| nosepiece | the swiveling structure that the objective lenses are mounted on |
| stage clips | small clips located on the stage used to hold a slide in place |
| diaphragm | used to control the amount of light shining through the stage |
| slide | a small piece of rectangular glass that holds your specimen |
| coarse adjustment | large knob located on the side of the scope |
| fine adjustment | moves the stage in very slow increments |
| resolving power | an optical instruments ability to show objects or parts of objects as separate |
| resolution | the measure of the clarity of an object |
| magnification | the ability to make an image larger than its actual size |
| electron microscope | form an image of a specimen using a beam of electrons rather than light |
| Cell membrane | Selectively permeable covering, that is flexible, but provides shape and form to the cell |
| Nucleus | Control center of the cell |
| Lysosomes | Sacs that contain digestive enzymes that can destroy invading bacteria or warn out cells |
| Chlorplast | Organelle found only in plants that traps the sun's energy in order to make food |
| Cytoplasm | Jelly-like grainy fluid in a cell that various organelles scattered throughout |
| Mitochondria | Poer plant of the cell and site of cellular respiration |
| Centrioles | This structure, made up of cellulose, is found only in plants and provides support and protects against dehydration |
| Vacule | Organells that provide storage of nutrients, wastes, and water |
| Diffusion | The movement of molecules from an area of high concentraion to an area of lower concentration |
| Herbivore | Animals that eat only plants |
| Carnivore | Animals that eaet only meat |
| Omnivore | Animals that eat both plants and meat |
| Cytokineses | Division of cells |
| Tumor | A mass of cells caused by uncontrolled, rapid cell division |
| Heredity | The passing on of characteristics from parent to offspring |
| Taxonomy | The study of scientifically placing organisms into groups |
