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Virus Reading Guide

Learn how active and hidden viruses multiply by attaching to living cells, injecting genetic material, producing viral proteins, assembling, and releasing viruses. Understand why biologists consider viruses to be nonliving and the importance of hosts in virus replication. Discover the functions of a virus's protein coat and how they attach to specific cells. Explore the differences between active and hidden viruses.

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Virus Reading Guide

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  1. Virus Reading Guide

  2. Virus attaches to the surface of a living cell How Active Viruses Multiply

  3. Virus injects genetic material into cell How Active Viruses Multiply

  4. Cell produces viral proteins and genetic material How Active Viruses Multiply

  5. Viruses assemble How Active Viruses Multiply

  6. Cell bursts, releasing viruses How Active Viruses Multiply

  7. Virus attaches to the surface of a living cell How Hidden Viruses Multiply

  8. Virus’s genetic material becomes part of the cell’s genetic material. How Hidden Viruses Multiply

  9. Later, virus’s genetic material becomes active. How Hidden Viruses Multiply

  10. Cell produces viral proteins and genetic material; viruses are assembled How Hidden Viruses Multiply

  11. Cell bursts, releasing viruses How Hidden Viruses Multiply

  12. 1. Why do biologists consider viruses to be nonliving?

  13. 1. Why do biologists consider viruses to be nonliving? Viruses are not cells and do not have the characteristics of organisms.

  14. 2. True/ False. Viruses multiply the same way as other organisms.

  15. 2. True/ False. Viruses multiply the same way as other organisms. False

  16. 3. Which is the name of a living thing that provides energy for a virus or an organism? • Parasite • Host • Bacteriophage • Particle

  17. 3. Which is the name of a living thing that provides energy for a virus or an organism? B. Host

  18. 4. Viruses act like ____ because they destroy the cells in which they multiply.

  19. 4. Viruses act like ____ because they destroy the cells in which they multiply. parasites

  20. 5. True/ False. Each virus can enter only a few types of cells in a few species.

  21. 5. True/ False. Each virus can enter only a few types of cells in a few species. True

  22. 6. True/ False. All viruses have the same shape.

  23. 6. True/ False. All viruses have the same shape. False

  24. 7. A virus that infects bacteria is called a(n) _______.

  25. 7. A virus that infects bacteria is called a(n) _______. bacteriophage

  26. 8. True/ False. Viruses are much smaller than bacteria.

  27. 8. True/ False. Viruses are much smaller than bacteria. True

  28. 9. Circle the letter of each sentence that is true about viruses. • They are larger than cells. • They need to be inside a living cell in order to reproduce. • They contain genetic material. • They are all round in shape.

  29. 9. Circle the letter of each sentence that is true about viruses. b. They need to be inside a living cell in order to reproduce. c. They contain genetic material.

  30. 10. Label the two basic parts of a virus in this diagram.

  31. 10. Label the two basic parts of a virus in this diagram. Protein Coat

  32. 10. Label the two basic parts of a virus in this diagram. Genetic material Protein Coat

  33. 11. True/ False. Some viruses are surrounded by an outer membrane envelope.

  34. 11. True/ False. Some viruses are surrounded by an outer membrane envelope. True

  35. 12. What are two functions of a virus’s protein coat?

  36. 12. What are two functions of a virus’s protein coat? • It protects the virus. • It allows the virus to attach to certain cells.

  37. 13. True/ False. The shape of the proteins allow the virus’s coat to attach to only certain cells in the host.

  38. 13. True/ False. The shape of the proteins allow the virus’s coat to attach to only certain cells in the host. True

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