Name UNIT 22 CAUSES AND SPREAD OF INFECTION 1.1 Identify the differences between bacteria‚ viruses‚ fungi and parasites What is a Bacteria? A bacteria is a living things that are neither plants nor animals‚ but belong to a group all by themselves. They are very small--individually not more than one single cell--however there are normally millions of them together‚ for they can multiply really fast. Bacteria are prokaryotes (single cells that do not
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THE PROBLEM: RATIONALE AND BACKGROUND A. Background of the Study The Antifungal Properties of Oregano Oil against Blastomyces dermatitidis Blastomyces dermatitidis is a type of pathogenic fungus which causes Blastomycosis‚ a yeast-likeyeastlike infection which occurs most frequently in dogs. It is seen most often in large breed male dogs‚ and especially in hunting dogs‚ sporting breeds‚ and dogs that spend a lot of time in environments where the Blastomyces organism exists‚ but female dogs
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helps destroy pathogens Antibiotic- compound that blocks the growth and reproduction of bacteria Vaccine- a preparation of weakened of killed pathogens Helper T Cells- produce memory T cells Killer T Cells- track down an destroy the bacteria‚ fungi‚ protozoan or foreign tissue that contains the antigen Name three ways pathogens are prevented from entering the body. Three ways pathogens are prevented from entering the body is Describe how Antibiotics work. Antibiotics work by interfering
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cut my foot open on the bottom of the lake stepping on a broken bottle. The camp counselor rushes me to the camp nurse who is now dressing my wound and explaining to me that I am at risk for infection because of exposure to bacteria‚ parasites‚ and fungi. What do I do now? The nurse continues to explain what can happen to me at this point. I am facing many threats at camp though not just this cut on my foot. Overheating‚ sunburn‚ this deep cut‚ etc. I know what to do to help prevent the overheating
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different type of incubation. As per sample taken from the cheek we can distinguish several bacterial colonies circular in shape. Each distinct circular colony should represent an individual bacterial cell or group that has divided repeatedly. Some fungi and moulds can cause a variety of skin diseases such as athlete ’s foot‚ jock itch‚ and ringworm. They can also cause pulmonary and internal infections. However‚ others are beneficial such as Penicillium which produces the antibiotic penicillin and Saccharomyces
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Unit 21: Biomedical science techniques Microbes and Anti-microbial effects Task 3 a) An infection is when bacteria‚ fungi or any other organisms enter the body‚ and cause infection by multiplying‚ producing toxins and invading and damaging cells. When a person is infected‚ they may become ill‚ but an infection does not always lead to illness. There are three types of reservoirs of infection for human diseases; these include human reservoirs‚ animal reservoirs and non-living reservoirs. Human
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Day 1: Biology of Animals Deuterostomes develop anus from blastopore Protostomes develop mouth from blastopore. Presentation: Overview of Prokaryotes‚ Protists‚ and Fungi I. Prokaryotes (ex. Bacteria) Characteristics -Unicellular -Small (0.5-5um) -Know shapes (ex. Spherical rod shaped and spiral) cocci‚ spirilla‚ bacilli -Cell wall‚ salt‚ peptidoglycan‚ Gram stain‚ virulence. Gram positive bacteria take up the Gram stain and turn purple‚ peptidoglycan traps crystal violet‚ very
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Ch. 1 Prokaryotes = bacteria ‚ archaea Eukaryotes = Fungi‚ protozoa ‚ algae (Growth:: Mitosis有絲分裂) Bacterial cell → Bacillus(rodlike) ‚ cocus (spherical)‚ spiral (curved) *P.S. 有時會star-shaped or square → 出現既形式: pairs‚ chains‚ clusters cell walls of bacteria → peptidoglycan (carbohydrate & protein complex) cell walls of plant and algal cell → cellulose Growth::Binary fission = bacteria reproduce by dividing into two equal cells bacteria 吸收nutrients from dead / living organisms/ photosynthesis
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not covered by protective skin. C: Fungi: Any of a group of unicellular‚ multicellular‚ or syncytial spore-producing organisms feeding on organic matter‚ including moulds‚ yeast‚ mushrooms‚ and toadstools can be either moulds or yeast. A mould which causes infections in humans is Trichophtyion rubrum which is one cause of ringworm and it may also infect nails. A common yeast infection is thrush caused by Candida albicans. D: Parasites: Are organisms such as fungi or worms that live in or on a host
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Disease is any condition that adversely affects the function of any part of a living thing. Health is the wellbeing of the organism. All our body functions‚ which are under the control of our genes‚ work together to maintain health. Difficulties in determining health and disease: Disease can cover a wide range of conditions including minor conditions‚ such as a cut finger or an ant bite‚ as well as the more obvious diseases like cancers. Health varies on a daily basis and is not just the absence
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