The Effects of Antibiotics on Bacterial Growth Biology II 1996 Bacteria are the most common and ancient microorganisms on earth. Most bacteria are microscopic‚ measuring 1 micron in length. However‚ colonies of bacteria grown in a laboratory petri dish can be seen with the unaided eye. There are many divisions and classifications of bacteria that assist in identifying them. The first two types of bacteria are archaebacteria and eubacteria. Both groups have common ancestors dating to more
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two of which were fresh. Each slide was carefully observed at each magnification (4x‚ 10x‚ 40x). Observations were reported in table and drawings of my findings. Table 1 Specimens | “e” slide | Penicillium with conidia | Bacteria‚ bacillus form | yeast | Bacteria‚ coccus form | Bacteria‚ spirillium form | Prepared yogurt slide | Fresh blood smear | Fresh yogurt slide – 24 hours old | Observations Specimen | Magnification | Observations | “e” | 150x | “e” is clear
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BIOL 1020 Lab Assignment: Virtual Microscopy Start by re-saving this file as follows: lab_surname_virtualmicroscopy.rtf‚ substituting your own surname. Type your responses to the questions below where indicated. Remember to save your work frequently. Viewing Magnification‚ Field of View‚ and Specimen Size 1. On the UD Virtual Compound Microscope‚ examine the onion root tip slide at 400X viewing magnification. Ensure that the image is centred. What is the approximate size of an onion root
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months to 2 years‚ depending on the type of infection Tuberculosis was popularly known as consumption for a long time. Scientists know it as an infection caused by M. tuberculosis. In 1882‚ the microbiologist Robert Koch discovered the tubercle bacillus‚ at a time when one of every seven deaths in Europe was caused by TB. Because antibiotics were unknown‚ the only means of controlling the spread of infection was to isolate patients in private sanitoria or hospitals limited to patients with TB—a
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Use of Enzymes in Food Industry - Food industry utilizes a variety of enzymes for processing of various foods‚ e.g.‚ production of various types of syrups from starch or sucrose (a- and β- amylases‚ glucamylase‚ pullulanase‚ invertase‚ and glucose isomerase)‚ meat/protein processing using proteases‚ removal of glucose and or molecular oxygen (O2) using glucose oxidase and catalase‚ use of lactase in dairy industry and use of enzymes in fruit juice and brewing industries. Glucose oxides are obtained
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is a very dangerous and contagious bacterial infection‚ known as Shigella bacillus‚ which affects the lining of the colon and intestinal tract (Margolis 2011). This bacterial disease has been known to wipe out armies since ancient times‚ but was majorly recognized during the Civil War from 1861 to 1865 (Civil War Society 2002). The severe abdominal pain‚ fever and the painful bowel movements accompany the Shigella bacillus infection which caused doctors to try find a solution to this epidemical disease
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difficult to work with and could not tolerate anyone telling him that his theories were wrong” (Robert 2). Anthrax was the first disease that Koch put his time in to study. Pollender‚ Rayer and Davaine discovered the Anthrax Bacillus. Koch wanted to prove that the bacillus was the cause of the disease. He used Mice to help conduct the experiment. His conclusion was the mice were killed when injected with the blood of a anthrax disease farm animal and healthy blood from farm animals survived. “By
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Castillo Tania Castillo Epidemiology Report of Tuberculosis Tuberculosis (TB) is a chronic bacterial disease that is highly in development countries. This disease is caused by a bacterium called Mycobacterium tuberculosis‚ an acid-fast aerobic bacillus‚ which is prevalent in tropical areas across the globe. For instance‚ the majority of the cases occur in malnourish individuals‚ immigrants and elderly persons. Most of the person’s who has the disease are concurrent for many years‚ and the reactivation
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Public Health at Washington University in St. Louis. While Rife was acquiring the technical skills and instruments he needed to isolate the cancer virus‚ Dr. Kendall was developing a protein culture medium for cultivation of the typhoid Bacillus. The typhoid Bacillus was usually large enough to be viewed through ordinary research microscopes of the time. However‚ when he used his Medium K‚ this bacterium changed into a form that was not visible or “non-filterable”. Then‚ it would morph back into a
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To scrutinize the color potency depth of the azo dye Remazol Black-B decolorizing activity by an effectual bacterial isolates‚ liquid medium was used. Based on the relative aptitude of the decolorization of diverse isolates‚ three most excellent performing bacterial isolates (1‚ 2 & 3) with more than 90% of decolorizing activity were preferred for more experiments (Data not shown). 3.1 Biodecolorization of Remazol Black-B by selected bacterial isolates Microbial decolorization of Remazol Black-B
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