Campbell Biology - Chapter 6 | 70 Questions with 100% correct answers | Verified

light microscope (LM) - visible light is passed through the specimen and then through glass lenses organelles - the membrane-enclosed structures within eukaryotic cells electron microscope (EM) - focuses a beam of electrons through the specimen or onto its surface scanning electron microscope (SEM) - the electron beam scans the surface of the sample, usually coated with a thin film of gold useful for detailed study of the topography of a specimen transmission electron microscope (TEM) - used to study the internal structure of cells aims an electron beam through a very thin section of the specimen cell fractionation - for studying cell structure and function takes cells apart and separates major organelles and other subcellular structures from one another plasma membrane - cells bounded by a selective barrier cytoso - jellylike substance in which subcellular components are suspended eukaryotic cell - most of DNA is in the nucleus, bounded by a double membrane prokaryotic cell - the DNA is concentrated in a region that is not membrane-enclosed called the NUCLEOIDcytoplasm - the interior of either type of cell