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?Kingdom for virus? (Prokaryota & Monera) PowerPoint Presentation
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?Kingdom for virus? (Prokaryota & Monera)

?Kingdom for virus? (Prokaryota & Monera)

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?Kingdom for virus? (Prokaryota & Monera)

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  1. ?Kingdom for virus? (Prokaryota & Monera) Virus Ch 18.1 Prokaryotes = no membrane bound organelles (no nucleus or mitochondria)

  2. Warts are a skin virus!

  3. Virus structure: • Protein Coat • DNA or RNA for replication • Adsorb-tion site • Host specific

  4. Nonliving Not cells Few of life’s criteria No respiration No growth No development Can be crystalline, dormant Living Replicate (with host) Contain DNA,RNA Contain protein coat Are viruses living or non-living?

  5. 4..Bacteriophage • Bacteria “eating” virus • Virus uses the bacteria as a host • For Viral replication

  6. Plant peach virus 5.Virus can infect • Plants • Animals • Bacteria

  7. Herpes mouth virus:

  8. Chicken Pox & Polio Virus

  9. Rabies virus Hepatitis B (Liver)

  10. Cow pox vaccination 1749 • Acquired Immunization • Artificial injection of a small amount of virus • Body’s immune response makes antibodies

  11. Lytic Cycle (Replication) of a Virus - “AVIRAL” 3. Replication of Viral DNA • Adsorption of virus onto the host 5.Lysis of Host cell Membrane & release Of virus 4. Assembly of protein coat 2. Insertion of Virus DNA into host cell

  12. Viral Replication:

  13. HIV virus structure:

  14. HIV Virus

  15. HIV virus infects T-cells • HIV virus Weakens the immune system • AIDS patients die of “common” diseases when T cell (WBC) count falls

  16. AIDS = break down of the immune system & death due to common diseases versus death by AIDS virus

  17. Transduction: Viral DNA becomes inserted Into the Bacteria DNA (1/100,000)

  18. Genetic Engineering of Insulin

  19. Restriction Enzymes:Made by some Bacteria