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An experiment to demonstrate bacterial staining.
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Liverpool John Moores University in Association with St Helens College Franchise Degree of B.Sc. (Hons) Applied Biology Basic Microbiology An Experiment to Demonstrate Bacterial Staining Assignment 1 Introduction If bacterial colonies are measured to be between 1mm to more than 1cm, then it is obvious that the individual microbe is a lot smaller. In this experiment to observe the microbes more thoroughly, techniques that were founded, tried and tested many years ago such as various staining techniques, were used to observe the individual microbes in this experiment for their characteristics, and with the aid of a light microscope this was possible. The purpose of staining in microscopy is to: - Add contrast to the image Identify chemical components of interest Locate particular tissues, cells or organelles. The three techniques carried out in this experiment; namely Gram Staining, Endospore Staining and the Hanging Drop; shown characteristics like size, form, elevation, colour and motility. Even under light microscopy (conditions better than the human...
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