fungi and bacteria Most fungal species are multicellular. Most fungi do not have flagella in any phase of their life cycle. They move toward food by growing toward it. The main body of most fungi is made up of fine‚ branching‚ and usually colourless threads called hyphae. Each fungus will have vast numbers of these hyphae‚ all intertwining to make up a tangled web called the mycelium. Fungi decompose dead animals and plant matter. Fungi releases carbon dioxide to the air. Bacteria are prokaryotic
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Rebekah Worley February 21‚ 2012 Mitchell Section 4 Biol 311 Staining and Identifying Unknown Bacteria Introduction: The microbiology lab up to this point has been used to teach the students how to stain and identify bacteria. There are several types of staining through which the bacteria can be identified based on the color and shape. The staining methods used in the lab are Gram Staining‚ Capsule Staining‚ Endospore Staining‚ and Acid Fast staining. One of the most significant method of
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toothpaste to oral bacteria VS the effect of mouthwash to oral bacteria Problem: Bacteria in ones’ mouth causes many problems for oneself in the future. For example‚ gum diseases‚ bad breath‚ etc..‚ Toothpaste and mouthwash is promised to kill most of the bacteria in one’s mouth‚ but which is more effective at killing the bacteria and preventing future problems? This experiment and research is going to prove which is more effective at killing oral bacteria. Purpose:
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Introduction: The purpose of this lab is to use staining techniques and biochemical testing to identify an unknown bacteria using Bergey’s manual. Bergey’s manual of Systematic Bacteriology is a dichotomous key primarily used to identify a bacterial species. Biochemical tests are used to differentiate different species of bacteria. These tests are effective in determining the characteristics of the microbe being tested. Such characteristics include citrate utilization‚ gelatin hydrolysis‚ nitrate
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microorganisms‚ should not incite an allergic response in the body‚ should not upset the normal microbial population of various body sites‚ and should not foster the development of drug resistance. Penicillin. Penicillin prevents Gram-positive bacteria from forming peptidoglycan‚ the major component of the cell wall. Without peptidoglycan‚ internal pressures cause the bacterium to swell and burst. Penicillin is not one antibiotic‚ but a family of antibiotics. The family includes penicillin F
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certain antibiotic. Understanding the principals of living microbes and identifying my unknown bacteria through numerous biochemical and metabolism tests‚ with the outmost confidence‚ Proteus vulgaris had the precise qualifications. The point of this report is to further explore the identification of my unknown bacteria by revealing the results of the experiments and comparing them to the other six known bacteria: Micrococcus luteus‚ Staphylococcus aureus‚ Staphylococcus epidermidis‚ Alcaligenes faecalis
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Eyes How do bacteria cause disease? • Bacteria cause disease by producing harmful chemicals‚ which are toxins of enzymes. These toxins kill or damage body cells. The damage to the body cells causes the symptoms of the disease. How does the structure of bacterial cells differ from that of human cells? • Bacterial cells have a slightly different structure than that of human cells. These structural differences are important because they allow antibiotics to kill bacteria without killing
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experiment is to differentiate between the two major categories of bacteria ‚ gram positive and gram negative. Through this experiment‚ gram staining skills develop. More understanding the types and morphology of bacteria. Expected experimental result‚ Escherichia coli (E.coli ) is a negative gram bacteria which stain pink colour ‚ while Staphylococcus aureus ( S.aureus ) is a positive gram bacteria which stain purple colour. Materials Bacteria : Escherichia coli ‚ Staphylococcus aureus Crystal Violet
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‘Superbugs’ Bacteria Bacteria are living organisms that can help the body and also cause infectious diseases. They are microscopic organisms and the largest is only 10 micrometres long (the same size as the world’s smallest guitar) the only living thing smaller than them is viruses. They can come in lots of different shapes and sizes. They grow and multiply every 20 minutes and are the same as the bacteria they came from‚ however they can sometimes mutate to adapt to their surroundings One
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Background: Bacteria is a prokaryotic cell that reproduces using the process of binary fission. Binary fission is “The process in which a parent cell splits into two daughter cells of approximately equal size”(northwestern.edu). The reproduction of bacteria can be stopped using antimicrobials. Antimicrobials were created and are used “to destroy disease-causing microbes”(cdc.gov). That means that antimicrobials fight and destroy organism such as bacteria. We use antimicrobials to clean are house
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