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Name ___________________________________________ Date__________ Period: _____________ VIRUSES AND BACTERIA Compare and contrast viruses and bacteria. Place the following words/phrases where they belong. Curable Vaccines Not curable Living Transmitted person to person Contains nucleic acids VIRUS Antibiotics Deadly Nonliving Has a cell wall Can be found in all living things Has a capsid BOTH BACTERIA Write whether the statement is true or false. If FALSE correct the underlined word to make the statement true. 1. _________________ All viruses look alike 2. _________________ Bacteria are unicellular 3. _________________ Bacteria have cell walls 4. _________________ Bacteria have a nucleus 5. _________________ Every virus contains genetic material. 6. _________________ A virus can replicate on its own. 7. __________________ Bacteria contain DNA. 8. __________________ Viruses are considered living organisms. 9. __________________ Viral attachment to a host is a random process. 10._________________ A(n) envelope is present in all viruses. Answer the following questions 11. List and explain the 5 steps of virus replication A. B. C. D. E. 12. In what type of environmental conditions can bacteria be found? List two examples. 13. Bacteria are found in which of the 6 kingdoms? Viruses can be found in which kingdom? 14. Describe what a vaccine is. When do you give a person a vaccine? 15. Explain why the tobacco mosaic virus infects only a cell of a tobacco plant and not a human cell? 16. What is a retrovirus? Give an example of a retrovirus. 17. State at least 3 situations where bacteria can be useful. A. B. C. 18. Give 3 types of diseases caused by bacteria and 3 by viruses. VIRUS BACTERIA