A compound microscope consists of three main parts: 1. Objective Lens 2. Eye Piece 3. Condensers. Part # 1. Objective Lens: The chief characteristics of the objective lens are: (a) To gather the light rays coming any point to the object, (b) To unite the light in a point of image, (c) To magnify the image. There are three types [...]
The following points highlight the three main types of chromatography. The types are: 1. Adsorption Column Chromatography 2. Thin Layer Chromatography 3. Gas Chromatography. Type # 1. Adsorption Column Chromatography: The general chromatography method was introduced into biology by Tswett in 1906 and various adsorbents such as starch and aluminium oxide are poured as a slurry into a long glass [...]
The following points highlight the top nine instruments that are used in microbiology. The instruments are: 1. Spectrophotometry 2.Autoradiography 3. Centrifugation 4. Electrophoresis 5. Gel Filtration 6. Hot-Air Oven 7. Autoclave 8. Laminar Air Flow 9. Incubator. Instrument # 1. Spectrophotometry: A spectrophotometer is a sophisticated type of colorimeter where monochromatic light is provided by a grating or prism. The [...]