Bacterial Morphology Essay Example for Free

Bacterial Morphology EssayQuestion A and C answers.A ridiculous mount stain is when a drop of water is placed onto the microscope slide. The water on the slide helps to game the organism and sample. The water fills the space between the cover slip and the slide. This action allows the light from the microscope to pass through the slide and the sample for erupt visualization of the organisms. A direct stain occurs when a charged pretension specify of a basic tarnish like methylene blue combines with the negatively charged dole out of and organism allowing the bacterium to become directly dye. In direct staining, the organisms must be fixed by a process such as inflame. Fixing the slide prevents the organism form washing aside the slide before visualization. This is accomplished by passing a position of the bacteria through flame. The heat sets the proteins of the organism thus causing the bacteria to attach to the slide. The organism can become damaged from the conni ption process and the use of heat prior to staining. In indirect staining, the negatively charged colored portion of an acidic dye is repelled by the negatively charged bacterial cell wall. This causes the backg round to be stained while leaving the organisms cell wall to remain colorless and classical.Question B answersSpecific bacterial morphologies noted in exercise one come from the spiral bacteria sample. The phase appears to be corkscrew in nature and vary in aloofness throughout the sample slide. The length varies but the width seems to be uniform. The color most likely arises from the stain utilise to allow for better visualization of the organism. The Bacillus sample has no discernable morphology and appears as round ended, and cylindrical do in nature. The organisms have a black tint which is probably related to the type of statin used for visualization of the organism.Question C Bullet 1The direct smear sample and the indirect smears shown were diametrical in appear ance based on the staining method. The Direct Smear stained slides showed that the cells picked up the dye and were stained for better visualization as well as for differentiation of organisms viewed. The Indirect smears showed visualization of organisms and cells unstained and were visually different from the direct smear.Question DThe nerve smears are somewhat circular in areas and irregular in other areas. The appearance is unlike the yeast slide. The plaque smear cells appear to adopt a discernable nucleus which is absent in the yeast slide. The yeast smear shows uniformity in the shapes and sizes of the sample provided. The plaque smear shows irregularity in shape but a significant going away in the size of the sample cells provided.Question EI was unable to obtain an oral mop from my cheek but was able to visualize the slide provided and base my response on it. The cheek smear sample shows cells that are irregular in shape and in size. The cells appear to have a darker rev olve around which is located in differing regions from cell to cell. The samples appear to be clustered in together and tightly packed. The plaque smears are circular in areas and are in differing patterns and shape compared to the cheek cells. The plaque smears are round and differ in size. The cheek cells are differing in shapes and packed close together.ReferenceHands-on-Labs. (2012). A science lab Manual of Small-Scale Experiments for the Independent Study of Microbiology. Englewood, CO. Available from www.labpaq.com