so that we do not fall ill with the diseases they cause. The skin Cross-section of skin The skin covers the whole body. It protects the body from physical damage‚ microbe infection and dehydration. Its dry‚ dead outer cells are difficult for microbes to penetrate‚ and the sebaceous glands produce oils that help kill microbes. Blood clotting If microorganisms get into the body through a cut in the skin‚ the most important thing to do is close the wound quickly so that no more microorganisms
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designed to allow air into the container but did not allow particles from the air to drift down into the body of the flask. He later went on to boil nutrient broths in these special flasks. In doing so Pasteur found that his flask remained free of microbes until he broke the necks‚ which allowed particles from the air to drift into the flask. He realized the particles from the air where what generated the microbial bacteria. Soon after‚ Pasteur began to utilize the knowledge he had gained from his
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Science Study Notes Inner Space Structure of the atom · An atom is the smallest part of an element that can be part of a chemical reaction - in other words‚ an atom is the smallest particle that can exist naturally · When two or more atoms join up they form a molecule. Atoms are generally found in the form of molecules. · An atom consists of a nucleus‚ which is made up of protons and neutrons. · Protons are positively charged particles. Neutrons have no charge. There is an outer layer made
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performing these tests was to differentiate microbes from one another and to compare how metabolic and biochemical processes differ from species to species. The tests performed include: the Fermentation of Sugars Test (sucrose‚ glucose‚ and lactose)‚ the Urease Test‚ the Fermentation of Lactose Test‚ the Sulfide Indole Mobility (SIM) Test‚ the Nitrate Reduction Test‚ the Protein Hydrolysis Test‚ the Catalase Test‚ and the Cytochrome Oxidase Test. The microbes that were tested during this lab were:
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genetic engineering or clean up environment waste through bioremediation is part of the sub discipline microbiology referred to as biotechnology ● A pathogen is the term used to refer to any disease causing microorganism ● The term ubiquitous is used to refer to the fact that microbes exists nearly everywhere on the earth ● A good hypothesis must be: able to be supported or rejected by experimentation ● A virion uses an infected host cells genetic and metabolic machinery for reproduction and assembly ● A virus is a microscopic agent
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could arise from nonliving matter. Redi disproved Spontaneous Generation. He only believed in Biogenesis which is that all life comes from life. Needham believed in Spontaneous Generation and wanted to prove it. Spallanzani wanted to know what caused microbes. Pasteur put an end to Spontaneous Generation and proved Biogenesis. Redi was the first scientist to challenge the theory of Spontaneous Generation by demonstrating that maggots come from egg of flies. He believed that all life comes from life
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Static ▪ Or Statis is by chemical or physical agent inhibits microbe ▪ Instead of killing them just stops them from growing and leaves them dormant ▪ Like refrigerating o Cidal ▪ Or cide is referring to agents that destroy or permanently inactivate a particular type of microbes ▪ Completely kills microbes ▪ Burning them • Define microbial death rate and describe
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Question 1 of 12 2.0 Points All of the following are considered microbes except A.viruses B.bacteria C.protozoa Correct D.worms Answer Key: D Question 2 of 12 2.0 Points Microbiologists investigate problems by designing and carrying out experiments. What is true about the scientific method? A.a hypothesis is the definitive explanation to account for the observation and therefore does not need to be tested B.a prediction is the factor that can change
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Winogradsky column description Introduction The experiment of Winogradsky column is to observe microbiology interaction of microbes using pond mud. The aim of this paper is to describe structural and chemical features in Winogradsky column and to show the acknowledgement of microbial cells in Winogradsky column. Materials of experiment Pond mud Calcium sulfate Calcium carbonate Shredded paper Pond water Cylinder Aluminum foil Methods 1. Prepare pond mud 2. Add calcium sulfate
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Q. Discuss the causes of food poisoning and the consequences of food poisoning for both customers and hospitality enterprises. Food poisoning is caused by consuming contaminated foods or beverages. Many different disease-causing microbes or pathogens can contaminate foods‚ so there are many different types of foodborne illnesses. Neglecting hygiene and safe food handling procedures can be financially expensive. The business may suffer a loss of customers‚ revenue and even be prosecuted. There
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