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Virus

Virus. What am I?. Virus. What am I?. Virus. What am I?. Virus. What am I?. Virus. What am I?. Virus. How do I spread?. Virus. How do I spread?. Virus. How do I spread?. Virus. How do I spread?. Virus. How do I spread?. Virus.

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Virus

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  1. Virus What am I?

  2. Virus What am I?

  3. Virus What am I?

  4. Virus What am I?

  5. Virus What am I?

  6. Virus How do I spread?

  7. Virus How do I spread?

  8. Virus How do I spread?

  9. Virus How do I spread?

  10. Virus How do I spread?

  11. Virus What is my relationship between human behavior and me?

  12. Virus What is my relationship between human behavior and me?

  13. Virus What is my relationship between human behavior and me?

  14. Virus What is my relationship between human behavior and me?

  15. Virus What is my relationship between human behavior and me?

  16. Virus What is my relationship between human behavior and me?

  17. Virus What is my relationship between human behavior and me?

  18. What do you know about viruses? • Think • About the questions • Pair • Talk to your partner about the answers. • Share • Share with the class What is a virus? How do I spread? What is my relationship between human behavior and me?

  19. Video • Identify three new ideas about viruses http://209.68.130.2/videos/qt/300k/1_3161_300k.mov

  20. New Questions you need answered. • As you read, open to address below and add your questions to “Web Response” • http://PollEv.com • Or • Add your questions to post it notes.

  21. QAR Strategy • Right There: • What is vomito Negro? • Think and Search: • What is the pattern of the virus’s effect on the body? • Author and you: • How does Monet’s experience in the emergency room relate to your own experiences in an emergency room or some other time when you needed swift attention? • On Your Own: • If you were seated next to a passenger with these symptoms, what would you do?

  22. E.coli and T4 phage

  23. Virusbook Taking advantage of our social network

  24. Waiting for a flight

  25. Procedures • You must wear goggles at all times. • Day 1: • Find a person from a different table. • Ask each other a question about the story. • Exchange 1 ml of water, if they did not know the answer, and ½ of ml of water if they did know the answer. • Find another person and ask another question. • Return to your desks and write down the names of the people you met.

  26. Procedures • You must wear goggles at all times. • Day 2: • Find a person from a different table. • Ask each other a question about the story. • Exchange 1 ml of water, if they did not know the answer, and ½ of ml of water if they did know the answer. • Find another person and ask another question. • Return to your desks and write down the names of the people you met.

  27. Infection

  28. Did you contract the virus • One person in the Waiting room had the filovirus. • Who had it? • Did you have contact with that person? • Did you have contact with that person indirectly? • How can we be sure who has the virus?

  29. Classify the questions

  30. Search • Pg 37-38; 62-67; 83-86; 98-100; 105-109; 117-118; 197-198 • http://www.cdc.gov/ncidod/dvrd/spb/mnpages/dispages/ebola.htm • http://www.biology.arizona.edu/cell_bio/tutorials/pev/page4.html • 82-84; 121-129; 153-157; 174-178; 185-192; 204-206; 323-325

  31. Science @ Home • Email me tonight your answers jorlinsky@dusd.net 1. What is a virus? 2. How do they spread? 3. How does human behavior affect the spread of viruses. 4. one question from the Classify QAR

  32. Read 215-17 & 360-371 • Right There • What other ways can filovirus spread? • As you read… • Develop questions: • Think and Search • Author and you • On Your Own Read 350-354 & 567-584

  33. EBOLA POSTER • You will make a Ebola virus prevention poster. • It must include. • Very few words, • Pictures showing how to prevent the spread of the virus. • It should not scare people, but be informative.

  34. Structure • 20 nm • Genomes • Ds DNA (Papo, adeno, herpes, pox) • Ss DNA (Parvo) • Ds RNA (reovirus) • Ss+ RNA (pico and toga) • SS- RNA (Rhabdo,Paramyxo, Ortho) • Retrorivus ss RNA

  35. Structure • Capsids • Protein coats • Phages

  36. Structure • Some viruses have structures have membranous envelopes that help them infect hosts • These viral envelopes surround the capsids of influenza viruses and many other viruses found in animals • Viral envelopes, which are derived from the host cell’s membrane, contain a combination of viral and host cell molecules

  37. Membranous envelope Capsid RNA LE 18-4c Glycoprotein 80–200 nm (diameter) 50 nm Influenza viruses

  38. Bacteriophages, also called phages, are viruses that infect bacteria • They have the most complex capsids found among viruses • Phages have an elongated capsid head that encloses their DNA • A protein tailpiece attaches the phage to the host and injects the phage DNA inside

  39. Head DNA Tail sheath Tail fiber LE 18-4d 80  225 nm 50 nm Bacteriophage T4

  40. VIRUS Entry into cell and uncoating of DNA DNA Capsid Transcription Replication HOST CELL LE 18-5 Viral DNA mRNA Viral DNA Capsid proteins Self-assembly of new virus particles and their exit from cell

  41. Reproduction

  42. Other Issues • HIV and AIDS • Viruses and Cancer • Vaccines • Plant Viruses • What’s New

  43. Viral envelope Glycoprotein Capsid LE 18-9 RNA (two identical strands) Reverse transcriptase

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