Biology 1406 Chapter 6 well answered

Biology 1406 Chapter 6 well answered Light Microscope - correct answer (microscope) where visible light is passed through the specimen and then through glass lenses. The lenses refract the light in such a way that the image of the specimen is magnified. Used to study organelles Parameters In Microscopy - correct answer Magnification is the ratio of an object's image size to its real size. Resolution is a measure of the clarity of the image. Contrast accentuates differences in parts of the sample. Organelles - correct answer the membrane-enclosed structures within eukaryotic cells Electron Microscope - correct answer (microscope) a beam of electrons is focused through the specimen or onto its surface. Scanning Electron Microscope - correct answer (microscope) is especially useful for detailed study of the topography of a specimen. Show 3-D images Transmission Electron Microscope - correct answer (microscope) Is used to study the internal structure of cells. Aims an electron beam through a very thin section of the specimen Cell Fractionation - correct answer Takes cells apart and separates major organelles and other sub cellular structures from on another. Homogenization and Centrifugation technique. Plasma membrane - correct answer All cells are bounded by a selective barrier Cytosol - correct answer Inside all cells is a semi fluid, jelly like substance, in which sub cellular components are suspended