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Chapter 13 – Viruses, Viroids , and Prions

Chapter 13 – Viruses, Viroids , and Prions. #2 Viral Multiplication (Life Cycles). Viral Morphology and Culturing. #1 Viral Multiplication (Life Cycles). General Viral Characteristics and Information. Misc. $100. $100. $100. $ 100. $100. $200. $200. $200. $200. $200. $300. $300.

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Chapter 13 – Viruses, Viroids , and Prions

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  1. Chapter 13 – Viruses, Viroids, and Prions #2 Viral Multiplication (Life Cycles) Viral Morphology and Culturing #1 Viral Multiplication (Life Cycles) General Viral Characteristics and Information Misc. $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 FINAL ROUND

  2. Topic 1: General Viral Characteristics and Information $100 Question • Viruses differ from all bacteria in that… • a. Viruses have DNA and RNA simultaneously in the virion • b. All bacteria contain capsids • c. Viruses are filterable • d. Viruses are not composed of cells ANSWER BACK TO GAME

  3. Topic 1:General Viral Characteristics and Information $100 Answer • Viruses differ from all bacteria in that… • a. Viruses have DNA and RNA simultaneously in the virion • b. All bacteria contain capsids • c. Viruses are filterable • d. (Correct Answer) • Viruses are not composed of cells BACK TO GAME

  4. Topic 1:General Viral Characteristics and Information $200 Question • Which of the following statements about spikes is FALSE? • a. They may change • b. Neuraminidase is not a spike • c. They may be used for attachment • d. They may cause hemagglutination ANSWER BACK TO GAME

  5. Topic 1:General Viral Characteristics and Information $200 Answer • Which of the following statements about spikes is FALSE? • a. They may change • b. Neuraminidase is not a spike (correct answer) • c. They may be used for attachment • d. They may cause hemagglutination BACK TO GAME

  6. Topic 1:General Viral Characteristics and Information $300 Question • Viruses that infect bacteria are called • a. Bacteriophages • b. Prions • c. Viroids • d. Polyhedral viruses ANSWER BACK TO GAME

  7. Topic 1:General Viral Characteristics and Information $300 Answer • Viruses that infect bacteria are called • a. Bacteriophages (correct answer) • b. Prions • c. Viroids • d. Polyhedral viruses BACK TO GAME

  8. Topic 1:General Viral Characteristics and Information$400 Question • What is the difference between ‘host range’ and ‘obligate intracellular parasites’? ANSWER BACK TO GAME

  9. Topic 1:Topic 1:General Viral Characteristics and Information $400 Answer • What is the difference between host range and obligate intracellular parasites? • Correct Answer: • Host range: The specific species a virus can infect • Obligate intracellular parasitism: Viruses can only replicate while inside of a host cell BACK TO GAME

  10. Topic 1:General Viral Characteristics and Information $500 Question • Which of the following is NOT used as a criterion to classify viruses? • a. Host range • b. Type of nucleic acid • c. Strategy for replication (life cycle) • d. Number of capsomeres ANSWER BACK TO GAME

  11. Topic 1:General Viral Characteristics and Information $500 Answer • Which of the following is NOT used as a criterion to classify viruses? • a. Host range • b. Type of nucleic acid • c. Strategy for replication (life cycle) • d. (correct answer) Number of capsomeres BACK TO GAME

  12. Topic 2: Viral Morphology and Culturing$100 Question • What is the ‘morphological type’ of this virus? ANSWER BACK TO GAME

  13. Topic 2: Viral Morphology and Culturing $100 Answer What is the ‘morphological type’ of this virus? Correct answer: Complex BACK TO GAME

  14. Topic 2: Viral Morphology and Culturing $200 Question • Viruses CANNOT be cultured • a. In laboratory animals • b. In cell culture • c. In embryonated eggs • d. In culture media ANSWER BACK TO GAME

  15. Topic 2:Viral Morphology and Culturing $200 Answer • Viruses CANNOT be cultured • a. In laboratory animals • b. In cell culture • c. In embryonated eggs • d. In culture media (correct answer) BACK TO GAME

  16. Topic 2:Viral Morphology and Culturing $300 Question • An envelope is created by what process? ANSWER BACK TO GAME

  17. Topic 2:Viral Morphology and Culturing $300 Answer An envelope is created by what process? Correct answer: Budding BACK TO GAME

  18. Topic 2: Viral Morphology and Culturing $400 Question • Explain the picture. ANSWER BACK TO GAME

  19. Topic 2: Viral Morphology and Culturing $400 Answer Correct answer: This is a picture of bacteria growing in a petri plate. The bacteria have been infected with a bacteriophage- the ‘clearings’ (blank spaces called plaques) on the plate depict areas where a phage has infected and killed the bacteria. BACK TO GAME

  20. Topic 2:Viral Morphology and Culturing $500 Question • Which of the following statements about viruses is FALSE? • a. Viruses use their own catabolic enzymes • b. Viruses contain a protein coat • c. Viruses contain DNA or RNA but never both in the virion • d. Viruses use the anabolic machinery of the cell ANSWER BACK TO GAME

  21. Topic 2:Viral Morphology and Culturing $500 Answer • Which of the following statements about viruses is FALSE? • a. Viruses use their own catabolic enzymes (correct answer) • b. Viruses contain a protein coat • c. Viruses contain DNA or RNA but never both in the virion • d. Viruses use the anabolic machinery of the cell BACK TO GAME

  22. Topic 3: #1 Viral Multiplication (Life Cycles)$100 Question • A Prophage is… • An animal virus • The capsid portion of a virion • Viral DNA • Only found in the Lytic Life Cycle ANSWER BACK TO GAME

  23. Topic 3: #1 Viral Multiplication (Life Cycles)$100 Answer A Prophage is… An animal virus The capsid portion of a virion Viral DNA (correct answer) Only found in the Lytic Life Cycle BACK TO GAME

  24. Topic 3: #1 Viral Multiplication (Life Cycles)$200 Question • Put the following steps of this viral life cycle in the correct order. • A) Virus forces the cell to synthesize viral proteins and viral genetic material • B) Virus attaches to the surface of the cell • C) Virus penetrates the host cell • D) Phage DNA is packaged in capsids • E) Cell ruptures ANSWER BACK TO GAME

  25. Topic 3: #1 Viral Multiplication (Life Cycles) $200 Answer • The correct order is... • A) (3) Virus forces the cell to synthesize viral proteins and viral genetic material • B) (1) Virus attaches to the surface of the cell • C) (2) Virus penetrates the host cell • D) (4) Phage DNA is packaged in capsids • E) (5) Cell ruptures • B C A D E BACK TO GAME

  26. Topic 3:#1 Viral Multiplication (Life Cycles) $300 QuestionYou MUST answer the $200 question FIRST!!! • The life cycle in the previous question is… • An animal DNA virus life cycle • A lytic life cycle • A latent virus • A lysogenicbacteriophage ANSWER BACK TO GAME

  27. Topic 3:#1 Viral Multiplication (Life Cycles) $300 Answer The life cycle in the previous question is… An animal DNA virus life cycle A lytic life cycle (correct answer) A latent virus A lysogenicbacteriophage BACK TO GAME

  28. Topic 3:#1 Viral Multiplication (Life Cycles) $400 Question • ‘Transduction’ is part of which life cycle? • a. Lysogenicbacteriophage • b. Lytic T even bacteriophage • c. HIV • d. RNA animal viruses ANSWER BACK TO GAME

  29. Topic 3:#1 Viral Multiplication (Life Cycles) $400 Answer ‘Transduction’ is part of which life cycle? a. (correct answer) Lysogenicbacteriophage b. Lytic T even bacteriophage c. HIV d. RNA animal viruses BACK TO GAME

  30. Topic 3:#1 Viral Multiplication (Life Cycles) $500 Question • What is a protease? ANSWER BACK TO GAME

  31. Topic 3:#1 Viral Multiplication (Life Cycles) $500 Answer • (correct answer) A protease is an enzyme that degrades proteins BACK TO GAME

  32. Topic 4:#2 Viral Multiplication (Life Cycles)$100 Question • Packaging, maturation, and assembling all refer to… • Entry of the virus into the host cell • Putting together the viral components • Release from the cell • Insertion of the prophage into host DNA ANSWER BACK TO GAME

  33. Topic 4:#2 Viral Multiplication (Life Cycles) $100 Answer • Packaging, maturation, and assembling all refer to… • Entry of the virus into the host cell • Putting together the viral components • Release from the cell • Insertion of the prophage into host DNA BACK TO GAME

  34. Topic 4: #2 Viral Multiplication (Life Cycles) $200 Question What virus has this life cycle? ANSWER BACK TO GAME

  35. Topic 4: #2 Viral Multiplication (Life Cycles) $200 Answer What virus has this life cycle? • Correct answer: Retrovirus BACK TO GAME

  36. Topic 4:#2 Viral Multiplication (Life Cycles) $300 Question • What is the name of the enzyme that converts retroviral ssRNA into dsDNA? ANSWER BACK TO GAME

  37. Topic 4:#2 Viral Multiplication (Life Cycles) $300 Answer • What is the name of the enzyme that converts retroviral ssRNA into dsDNA? • (correct answer) Reverse Transcriptase BACK TO GAME

  38. Topic 4:#2 Viral Multiplication (Life Cycles) $400 Question You MUST do $300 question before this question! 1 • In what cell is reverse transcriptase performing its function? 6 5 2 ANSWER 4 BACK TO GAME 3

  39. Topic 4:#2 Viral Multiplication (Life Cycles) $400 Answer • In what cell is reverse transcriptase performing its function? • Correct answer: Cell 2 BACK TO GAME

  40. Topic 4:#2 Viral Multiplication (Life Cycles) $500 Question • RNA viruses: What is a + strand? ANSWER BACK TO GAME

  41. Topic 4:#2 Viral Multiplication (Life Cycles) $500 Answer RNA viruses: What is a + strand? Correct answer: The + strand is the ‘sense strand’ (mRNA strand) that contains codons that are complimentary to anticodons on tRNA molecules that carry specific amino acids. BACK TO GAME

  42. Topic 5: Misc.$100 Question • A viroid is • a. A provirus • b. A naked, infectious piece of RNA • c. A capsid without nucleic acid • d. A complete, infectious virus particle ANSWER BACK TO GAME

  43. Topic 5:Misc.$100 Answer • A viroid is • a. A provirus • b. A naked, infectious piece of RNA (correct answer) • c. A capsid without nucleic acid • d. A complete, infectious virus particle BACK TO GAME

  44. Topic 5:Misc.$200 Question • What type of viral nucleic acid is required for a virus to cause cancer? ANSWER BACK TO GAME

  45. Topic 5: Misc.$200 Answer • What type of viral nucleic acid is required for a virus to cause cancer? • Correct answer: dsDNA BACK TO GAME

  46. Topic 5:Misc.$300 Question • In general, what type of cell is more easily infected with viruses- animal cells or plant cells? ANSWER BACK TO GAME

  47. Topic 5:Misc.$300 Answer • In general, what type of cell is more easily infected with viruses- animal cells or plant cells? • Correct answer: Animal cells BACK TO GAME

  48. Topic 5:Misc.$400 Question • What does the cell need to make more viral RNA + strands? ANSWER BACK TO GAME

  49. Topic 5: Misc.$400 Answer • What does the cell need to make more viral RNA + strands? • Correct answer: - strands BACK TO GAME

  50. Topic 5:Misc.$500 Question • Which of the following is not true about Prions ? • a. Prions may be inherited • b. Prions are infectious protein • c. Prions are curable • d. Prions are transmissible ANSWER BACK TO GAME

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