report is worth 100 points towards your final lab grade. Each Q is worth 2 points unless otherwise noted. Also‚ per the Honor Code‚ this work must be your own. This is due Mon. 10/8 at 11:59 PM. The theme of this lab is the identification of unknown bacteria and viruses in a lab. Selective vs. Differential Media Selective vs. Differential Media Use the following website to help you answer Q 1 and 2 http://www.highlands.edu/academics/divisions/scipe/biology/labs/rome/selectivedifferential.htm
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BASIC FOOD MICROBIOLOGY 1. Why do we need to identify bacteria in our food? 2. What is microbiology? 3. What is microorganism? Give examples. 4. Bacteria exist in two states. What are they? 5. What are the differences between spore and vegetative cell? 6. Bacteria vary in shape. Name the shape of bacteria that you learn. 7. What are the effects on food caused by spoilage bacteria and pathogenic bacteria? 8. What are the differences between eukaryote and prokaryotes
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Conclusion In part A of this experiment‚ we transformed the bacteria into an antibiotic resistant form by inserting a plasmid into it. We used heat shock in order to make the bacteria capable to uptake a plasmid in the presence of calcium ions that help disrupt the cell membrane (heat shock is the combination of altering hot and cold). When they are capable of accepting plasmids‚ the bacteria are incubated with plasmids that carry the resistance to a particular antibiotic‚ in this case ampicilin
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Unit ICO2 Causes and spread of infection Assessment Criteria Outcome 1 Understand the causes of infection The learner can: 1. Identify the differences between bacteria‚ viruses‚ fungi and parasites? Bacteria : Bacteria are one cell structures that multiply rapidly and can become a colony of 2 million within 2 hours. Viruses : Visible can only be seen with an electron microscope they can float in the air‚ sit on a door handle or remain non-living. They become active when they are allowed
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Microbes are diverse– protozoa‚ bacteria‚ fungi and microscopic plants viruses‚ viroids and also prions that are proteinacious infectious agents. Some of the microbes are shown in Figures 10.1 and 10.2. Microbes like bacteria and many fungi can be grown on nutritive media to form colonies (Figure 10.3)‚ that can be seen with the naked eyes. Such cultures are useful in studies on micro-organisms. BIOLOGY (a) (b) (a) (b) (c) (c) Figure10.1 Bacteria: (a) Rod-shaped‚ magnified 1500X
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The substance used in antisepsis is called an antiseptic‚ which is used to kill a broad range of infections. An antiseptic is different from an antibiotic‚ which is used to target a certain type of bacteria. Once scientists and surgeons learned more about bacteria and the connection between bacteria and infection‚ they developed ways to prevent the latter. Antiseptics are applied to the skin to reduce the possibility of infection. Common antiseptics include rubbing alcohol‚ boric acid‚ hydrogen
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its an infection of a hair follicle. This infection is caused by a bacteria called streptococcus aureas. Bacterias are all around is‚ the body needs normal bacteria to function properly. Hair follicles that have been opened‚ either from scratching allow bacteria to penetrate. Upon penetration‚ the area becomes red and tender‚ over time it hardens and forms a yellow point. Mostly its pea sized. This yellow point consists of bacteria fighting white blood cells‚ which the body releases to counter
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AND DETEGENTS AGAINST BACTERIA BACTARIUM EVALUATION OF EFFECTIVITY OF SOAPS AND DETEGENTS AGAINST BACTERIA
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between Viruses‚ Bacteria‚ Cyanobacteria‚ Achaea and Fungi. Bacteria or bacterium are unicellular microorganisms. They are essentially only a few micrometres long and form of various shapes including the spheres‚ rods and spirals. A BACTERIAL CELL Illustration courtesy of Wikipedia. A Virus (from the Latin noun virus‚ meaning toxic or poison) is a sub-microscopic particle that infect the cells of a biological organism. Illustration courtesy of mc3cb.com. BACTERIA VIRUS STRUCTURE
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Cause and spread of infection 1.1. Identify the differences between bacteria‚ viruses‚ fungi and parasites All 4 are different types of pathogens Bacteria is a single celled organism that multiply by themselves. They lives within and on most living and nonliving things. The majority of bacteria’s are harmless and beneficial to the human body but some can cause infectious diseases. A bacterium usually affects one part of the body and doesn’t spread across or through the body. Bacterial infections
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