‘slice extremely thin sections for viewing under the microscopes’ as Robert Hooke found that cutting a cork in a thin section gets a clearer view. As technological advances advanced new techniques also developed over time for example staining techniques. Staining techniques was developed to view and understand tissues under the microscope by using dyes to stain tissue and visualise
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that lens‚ do you know the difference between “magnification” and “resolution” power? Magnification: Makes image bigger to see detail. Resolution: Clarity of an object‚ resolution is more important than magnification. You have learnt many staining techniques through the lab exercises: What dye did you use in simple stain? Crystal Violet What dyes did you used in Gram stain? Crystal violet‚ gram’s iodine‚ and safranin violet. Why did you have to heat up the slide when you did the acid
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The purpose of this lab is to isolate a bacterial population from the normal throat flora. A streak plate method will be used to obtain a pure culture of a Gram positive coccus genus of bacteria. Several biochemical tests will be performed to aid in the identification of this unknown bacterium. Biochemical tests are a series of tests used to identify certain bacterium The various tests that are used in this lab are the catalase test‚ oxidase test‚ blood hemolytic test‚ MSA‚ blood agar‚ and PEA/ab
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As a junior in high school‚ the most terrifying question that anyone could ask me is‚ “What do you want to major in?” Until this year‚ my mother had never asked me about my future plans. She has a major in microbiology from the University of Georgia‚ but works in Atlanta in the insurance business as an underwriter. In college‚ she considered pharmaceutical work‚ but was told not to by her father who convinced her that all pharmacists were “druggies”. My mother is in the “useless degree” category
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of a pathologist‚ assisting in different medical laboratory examinations. The medical examinations may include but are not limited to surgical procedures during autopsies‚ carefully analyzing of surgically removed tissues as well as preparing and staining of those tissues for further examinations in order to assist in the diagnosis of the pathologic conditions or death. Pathologists’ Assistants also assist in administrative duties such as maintaining of protocols related to pathology procedures. I
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Public health in microbiological labs in Middle East With modeling the disease pathway of listeria monocytogenes Introduction The focus of public health intervention is to improve health and quality of life through the prevention and treatment of diseases and other physical and mental health conditions‚ through surveillance of cases and the promotion of healthy behaviors .and because the field playing challenges and professionals to meet the complex health issues. I wish to apply for
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Rhodococcus SPECIES IN VARIOUS APPLICATIONS THROUGH FOUR MAIN MECHANISMS; CATABOLIZATION‚ BIOCONVERSION‚ BIODEGARDATION AND BIODESULPHURISATION. By ZAINAL ABIDIN BIN ABU BAKAR Thesis Submitted to the Faculty of Biotechnology and Life Sciences‚ Universiti Industri Selangor‚ in Partial Fulfillment of the Requirement for the Degree of Bachelor of Biotechnology Industry (Hons) May 2009 1 I hereby declare that the thesis is based on my original work except for quotations and citations
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In March 10‚ the first procedure that was done was gram staining. The purpose of this procedure was to determine if the unknown bacterium is gram-positive or gram-negative‚ and also to determine the cell shape. Gram-positive cells will be purple while gram-negative cells will be pink. The methods for the Gram staining method first starts with a fixed smear of the bacterium‚ covered it with crystal violet for 30 seconds. Afterwards‚ it should be gently rinsed off with distilled water and be covered
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pollen grain or spore is called an exine. Pollen is an example of trace evidence Through microscopic examination of pollen or spores‚ it is possible to identify a specific plant that produced that pollen or spore With the exception of bacterial endospores‚ pollen and spores are reproductive structures. Spores are produced only by fungi. Flowering plants or angiosperms are the only plants that produce pollen. Pollen and spore identification can provide important trace evidence in solving crimes
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Chapter 1: Classification and Characteristics of Living Organisms Organisms - An individual living thing‚ such as an animal or a plant‚ is called an organism. There are seven characteristics of living organisms – Nutrition Nutrition is the process by which organisms obtain energy and raw materials from nutrients such as proteins‚ carbohydrates and fats for growth and repair. Photosynthesis is the process of nourishment of green plants. Digestion is the process of nourishment of green
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