Bacterial Smears Are Fixed before Staining to? Answer It is important to heat fix the bacterial smear before staining so as to‚ kill the bacteria‚ firmly adhere the smear on to the microscopic slide to prevent washing off during staining‚ and to allow the sample to readily take up the stain. Reference: www2.hendrix.edu What is the purpose of heat- fixing the smear? It helps the cells adhere to the slide so that they can be stained. The purpose of heat fixing is to kill the organisms without
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Bacteria are the most numerous type of microorganism found in the rhizosphere of the soil. They produce secondary metabolites which are capable of producing antibiotic which eventually inhibit or kill bacteria. The rhizosphere region of the soil is a highly favorable habitat for the proliferation‚ activity and metabolism of numerous microorganisms. The magnitude of this area depends on the plant and the size of the roots that the plant possesses. Bacteria are among the microorganisms living in the
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Methodology By using aseptic‚ a little cultured bacteria was inoculated on the TSA agar. A quadric streak was making. Inoculation loop was heated and keep it cold for a while before the next quadratic streak. Six agar plates were observed for 24 hour at temperature of 30ºC. Choose one from the dense colony and make a sub-culture on the new agar plate. The step was repeated to get a single colony‚ which is pure colony. a) Sequestration of bacteria from fish organs Methodology Dissecting set
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Bacteria and Toothpaste: The Effect of Toothpaste on Bacteria Table of Contents Page 1: Title Page Page 2: Table of Contents Page 3: Introduction Page 4 – 6: Research Page 7 – 10: Lab Report Page 11: Conclusion Page 12: References Bacteria and Toothpaste: The Effect of Toothpaste on Bacteria My project is on Toothpaste and Bacteria‚ and how bacteria is effected by toothpaste. I found this project very interesting because it was an opportunity
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Beneficial bacteria in the environment and their uses. In today’s world‚ the environment and its related issues are steadily gaining a lot of importance. Some bacteria are helpful and are used to obtain balance in the environment. It has been seen that helpful bacteria are useful in dissolving organic sludge from water‚ breaking down the growth of algae‚ reducing the various noxious odours such as hydrogen sulfide odours‚ reducing ammonia levels‚ promoting faster growth of fish in the water body and
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a. The bacteria that causes botulism are found in soil‚ water‚ animal guts and dung. When the spores exposed to low oxygen and certain temperature‚ they produce botulinum toxin‚ able to germinate‚ metabolize‚ food sources through an aerobic respiration to produce toxin. The toxin blocks the release of acetylcholine from motor nerve endings causing paralysis symptoms. The botulism either food born‚ eating contaminated home-canned foods where the fermentation takes place. or through abrasion in the
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phonetically Dictionary - View detailed dictionary 1. article 1. the The purpose of this is knowing the types of bacteria that exist in our environment and diseases caused by them‚ and how treat it. MATERIAL AND METHODS: An unknown bacterium was handed out
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Research Paper Bacteriological study of drinking water in the Pakistan’s peri-urban areas of Islamabad and Rawalpindi Nusrat Yasin1‚ Noureen Shah1‚ Jafar Khan1*‚ Noor us Saba2 and Zia ul islam3 1 Department of Microbiology‚ Kohat University of Science and Technology‚ Kohat‚ KPK‚ Pakistan. 2 National Institute of Health (NIH) Islamabad. 3 Government College University Lahore. Accepted 22 November‚ 2011 In order to ascertain the water and food quality for human consumption the microbial
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microorganisms in our planet‚ bacteria. Bacteria lives everywhere‚ in air‚ hot springs‚ and in our bodies. Some bacteria are harmful and some of them are helpful. Biologists use helpful bacteria in several ways. In my essay‚ I will focus on some uses of bacteria in medicine‚ environment‚ and industrial. Bacteria contains many distinctive characteristics that makes it very important for the environment. It is considered one of the basic decomposers in the environment because bacteria analyzes dead organisms
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Virus and Bacteria Virus - A virus is a capsule of protein that contains genetic material. A virus cannot reproduce on its own; it must infect a living cell to grow. Bacteria - Bacteria are one-celled organisms that live on their own. They can multiply and reproduce by subdivision Bacteria and viruses cause many of the diseases we are familiar with and may sound synonymous; they are greatly different from each other. [pic] o They differ greatly in size. The biggest viruses are only as large
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