of microbiology includes: used in biomedical research‚ creation of medicines‚ environmental applications and new research tools. Disease causing organisms include: protists‚ bacteria‚ viruses and other microorganisms. Bacteria are important for fixing N2 in a usable form for plants. Bacteria and some fungi are important in decomposition and recycling of raw materials. Industry applications of microbiology: waste management‚ food industry‚ mining‚ medicine‚ research and biotechnology
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Bacteria are the most ancient life forms‚ most bacteria are so small that under a light microscope you can only see them as little dots. Some groups however grow to larger sizes and have spectacular shapes (1). Bacteria are present in most habitats on the planet‚ growing in soil‚ water‚ acidic hot springs‚ radioactive waste‚ and deep in the Earth’s crust‚ as well as in organic matter and the live bodies of plants and animals (2). Bacteria is mostly thought of as a pathogen‚ while it is true that
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Preventing Infection INFECTION The invasion or colonization of the body by pathogenic microorganisms The presence of a particular type of microorganism in a part of a body where it is not normally found and may lead to a disease Microorganism A small (micro) living plant or animal that cannot be seen without the aid of a microscope A microbe Contributions TYPES of Microorganism Bacteria Fungi Protozoa Algae Viruses Multicellular Animal Parasites BACTERIA Very small‚ simple‚ unicellular
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Unit 20 – Causes and Spread of Infection 1.1 Identify the differences between bacteria‚ viruses‚ fungi and parasites. Bacteria are microbes with a single cell. There is no nucleus or membrane within bacteria‚ making its structure simpler than that of other organisms. Instead‚ the genetic information is contained in a single loop of DNA. Viruses are microscopic organisms consisting of genetic material surrounded by proteins‚ lipids‚ or glycoprotein coats. Fungi can be multicellular or single celled
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UNIT 11 2.1 There are many childhood illnesses listed below are some examples……… Croup – A child can get croup at any time of the year‚ although it’s more likely to occur during late autumn/ early winter. This may be because there is more are :- a sore throat‚ runny nose‚ high temp and a cough. Over a day or 2 specific symptoms of croup will develop these include a bark like cough‚ a horse or croaky voice‚ difficulty breathing ( a harsh grating nois;lk.e when they breathe in) and have difficulty
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Prevalence of trematode parasites in oreochromis niloticus harvested at Ggaba landing site. (fishing communities are faced with a challenge of close proximity with snails especially at a landing site with swampy areas since these are breeding sites for snails basing on parasitology studies trematodes use snails as intermediate hosts in their life cycle fish feed on snails and can also act as accidental hosts henceforth infecting humans) Hypothesis There are no trematodes in fish handled at Ggaba
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spread of infection Level: 2 Credit Value: 2 GLH 20 Learning Outcomes The learner will; Assessment Criteria The learner can; 1. Understand the causes of infection 1.1 Identify the differences between bacteria‚ viruses‚ fungi and parasites 1.2 Identify common illnesses and infections caused by bacteria‚ viruses‚ fungi and parasites 1.3 Describe what is meant by “infection” and “colonisation” 1.4 Explain what is meant by “systemic infection” and
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and Spread of Infection 1.1/1.2 | Features | Illnesses Caused | Bacteria | Can be helpful‚ can be an aid in digestion‚ able to break down sewage‚ can be used in food (yoghurt)‚ affects odour‚ taste and texture. Needs nutrients‚ pH‚ time‚ temperature‚ +/- Oxygen and water activity to grow. | Lyme disease‚ Tuberculosis | Viruses | Exist only to replicate‚ need a host‚ infect all types of cells‚ found in soil‚ water and air. | Hepatitis A‚ Norovirus‚ Measles‚ Mumps | Parasites | Need a host
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Causes and spread of infection 1.1 Identify the differences between bacteria‚ viruses‚ fungi and parasites. · Bacteria- Are one cell microorganisms with a simple cellular orgaization who necleus lacks a menbrane. · Viruses- peices of nucleic acid (DNA or RNA) wrapped in a thin coat of protein that replicate only within the cells of living hosts. · Parasites- can be protazoa‚ yeasts or multicellular organisms such as fungi or worms that live in or on a host
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Are Viruses Alive? For years‚ scientists debated whether or not viruses are living organisms. The most confusing thing about viruses is that they display characteristics of both living and nonliving beings (Lourerio‚ 2006). Even after years of research and argument‚ we have not come to a final conclusion to this mind boggling question: Are viruses alive? Viruses are miniscule parasites that spread infection through all species of living things‚ plants and animals. Parasites are completely dependent
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