Viruses

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Viruses

  1. 1. Viruses & Bacteria Chapter 17 Biology 11 Presentation put together by Mandie Lynn Walls
  2. 2. What are Viruses <ul><li>A virus is a non-cellular particle made up of genetic material and protein that can invade living cells. </li></ul>
  3. 3. T4 Bacteriophage
  4. 4. The Structure Of a Virus <ul><li>Viruses are composed of a core of nucleic acid </li></ul><ul><li>The Nucleic acid core is surrounded by a protein coat called a capsid </li></ul><ul><li>The Nucleic core is either made up of DNA or RNA but never both </li></ul>
  5. 6. List of Diseases Caused by Viruses <ul><li>Cold </li></ul><ul><li>Flu </li></ul><ul><li>Smallpox </li></ul><ul><li>Measles </li></ul><ul><li>Mumps </li></ul><ul><li>AIDS </li></ul><ul><li>Eboli </li></ul><ul><li>Chicken Pox </li></ul><ul><li>Viral pneumonia </li></ul><ul><li>Fever blisters </li></ul><ul><li>Mononucleosis </li></ul><ul><li>Rabies </li></ul><ul><li>Hepatitis </li></ul><ul><li>Gastrointestinitis </li></ul><ul><li>Warts </li></ul>
  6. 7. How are Viruses Transmitted? <ul><li>A cold can spread by coughing and/or sneezing </li></ul><ul><li>Touching or shaking hands </li></ul><ul><li>Touching food with dirty hands will also allow viruses or bacteria from the intestine to spread </li></ul><ul><li>Body fluids, such as blood and saliva can contain the infecting organisms and transmission of such fluids can cause the spread of the virus </li></ul>

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