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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CAUSES AND SPREAD OF INFECTION CANDIDATE NAME: DATE AND SIGNATURE: 1. Understand the causes of infection 2. Understand the transmission of infection Anyone can develop an infection‚ but certain groups of people are more at risk than others. These groups include: the elderly‚ the infim‚ those who are ill‚ those with weakened immunity‚ those who are convalescing‚ pregnant mothers
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Causes and spread of infection. 1. Understand the causes of infection. 1.1 You need to understand the differences between bacteria‚ viruses‚ fungi and parasites; this also covers cell structure and growth pathogens. 1.2 Common illnesses and infections include bacteria for example tuberculosis‚ MRSA‚ tetanus‚ gangrene‚ Legionnaires ‘disease‚ salmonella and conjunctivitis. Viruses like winter vomiting disease‚ measles‚ mumps‚ chickenpox‚ HIV‚ Hepatitis B‚ warts and influenza. Fungal infections
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Causes and spread of infection Identify the differences between bacteria‚ viruses‚ fungi‚ parasites? -Viruses aren’t living. They’re only made of complex proteins and nucleic acids. Bacteria‚ Fungi and Parasites are living organisms. - Bacteria are unicellular microorganisms. Fungi and Parasites are multicellular. - Fungi have cell walls made of chitin and they aren’t animals. Parasites and bacteria are animals. Bacteria come in 3 main shapes; spherical which are known as cocci‚ rod shaped
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. Understanding the causes of infection 1.1 Identify the differences between bacteria‚ viruses‚ fungi and parasites. Bacterial and fungi infections are easy to cure with the use of antibiotics‚ where as viruses can be hard to cure or vaccinate against‚ such as the common cold. Bacteria can be found everywhere and anywhere Soil‚ Water‚ Plants‚ Animals‚ material and even deep in the earth’s crust. Bacteria feed themselves by making there food with the use of sunlight and water. We would not
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Causes and spread of infection 1.1: Bacteria are single-celled microorganisms with a simple cellular organization whose nucleus lacks a membrane. Viruses are DNA wrapped in a thin coat of protein that replicates only within the living hosts. Fungi come in many different varieties and we eat quite a few. Mushrooms are fungi as is the mould that forms the blue or green veins in some types of cheese. Yeast is another type of fungi and is the necessary ingredient to make most types of bread.
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parasite is a plant or animal which lives on or in another plant or animal as a host. Below is an image of a parasite with labels to identify its structure: 1.2 Identify common illnesses and infections caused by bacteria‚ viruses‚ fungi and parasites Below is a table of common illnesses and infections caused by either‚ bacteria‚ viruses‚ fungi and parasites‚ each illness is displayed in the causing micro-organism: Bacteria: Tuberculosis (two organisms called Mycobacterium tuberculosis)MRSA
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Cases And Spread of Infections 1.1 Identify the differences between bacteria‚ viruses‚ fungi‚ and parasites. The difference between bacteria‚ viruses‚ fungi and parasites are: Viruses are coated genetic material that invade cells and use the cell’s apparatus for reproduction. 1.2 Identify common illness and infections caused by bacteria‚ viruses‚ fungi‚ and parasites. Bacteria Food poisoning‚ Bubonic plague‚ Bacterial meningitis‚ Cholera‚ Diphtheria‚ Rheumatic fever‚ Scarlet
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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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Causes 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
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