viruses
TRANSCRIPT
Viruses & BacteriaViruses & Bacteria
Chapter 17Chapter 17
Biology 11Biology 11Presentation put together by Mandie Presentation put together by Mandie
Lynn WallsLynn Walls
What are Viruses
A virus is a non-cellular particle made up of genetic material and
protein that can invade living cells.
T4 BacteriophageT4 Bacteriophage
The Structure Of a VirusThe Structure Of a Virus
Viruses are Viruses are composed of a core composed of a core of nucleic acidof nucleic acid
The Nucleic acid core The Nucleic acid core is surrounded by a is surrounded by a protein coat called a protein coat called a capsidcapsid
The Nucleic core is The Nucleic core is either made up of either made up of DNA or RNA but DNA or RNA but never bothnever both
List of Diseases Caused by List of Diseases Caused by VirusesViruses
•Cold•Flu•Smallpox•Measles•Mumps•AIDS•Eboli•Chicken Pox
•Viral pneumonia•Fever blisters•Mononucleosis•Rabies•Hepatitis •Gastrointestinitis•Warts
How are Viruses Transmitted?How are Viruses Transmitted?
•A cold can spread by coughing and/or sneezing•Touching or shaking hands •Touching food with dirty hands will also allow viruses or bacteria from the intestine to spread•Body fluids, such as blood and saliva can contain the infecting organisms and transmission of such fluids can cause the spread of the virus