V & B Test Answers .

1. V & B Test Answers. (SNB pages 60 & 61. Cornell w/ summary) 1. An illness is probably caused by a...... virus if signs of infection don’t appear for 10 years.

2. V & B Test Answers. (SNB pages 60 & 61. Cornell w/ summary) 2. ......are used to help in food production, making medicine, and environmental cleanup. 1. Hidden

3. 3. .....viruses begin to multiply immediately after infecting a host cell. 2. bacteria

4. V & B Test Answers. (SNB pages 60 & 61. Cornell w/ summary) 4. Breaking down large chemicals into smaller chemicals is done by organisms called ....... 3. active

5. V & B Test Answers. (SNB pages 60 & 61. Cornell w/ summary) 5. Viruses attack …… kinds of cells. or What kind of cells do viruses attack?....... 4. Decomposers Any kind of cell can be a host cell.

6. V & B Test Answers. (SNB pages 60 & 61. Cornell w/ summary) 6. ......are not a treatment for viral infections. Vaccines prevent virus infections so they also are not a treatment. 5. all

7. V & B Test Answers. (SNB pages 60 & 61. Cornell w/ summary) 7. Bacteria do not have nuclei, so they are described as ....... Fungi, plants, & animals have nuclei making them eukaryotes 6. Antibiotics Viruses are not cells so they are not living so antibiotics don’t work on them.

8. V & B Test Answers. (SNB pages 60 & 61. Cornell w/ summary) 8. The rigid protective structure around a bacterium is called a ....... 7. prokaryote

9. V & B Test Answers. (SNB pages 60 & 61. Cornell w/ summary) 8. The rigid protective structure around a bacterium is called a ....... 7. prokaryote

10. V & B Test Answers. (SNB pages 60 & 61. Cornell w/ summary) 9. Producing energy by breaking down sugar is called……….. 8. Cell wall

11. 10. ........are viruses that infect bacteria. 9. Bacteria are small cells that perform respiration that gets energy from sugar. Viruses are not cell, so they don’t perform respiration. Respiration is done by all living things.

12. 11. Viruses destroy their host cells, so they act like ....... 10. Bacteriophage “phage”

13. V & B Test Answers. 12. …….. …….. , cheese, and vinegar are produced with the help of bacteria. 11. parasite

14. 13. Viruses are ......... than cells. (Size comparison) 12. Sour dough bread

15. 14. ........ are found in the cytoplasm of both bacteria and eukaryotic cells. 13. Much smaller

16. 15. When bacteria experience unfavorable conditions they form ....... 14. Ribosomes

17. 16. Viruses are not cells, so they are considered ....... 15. endospore

18. V & B Test Answers. 17. Viruses are provided energy by their ......... 16. nonliving

19. V & B Test Answers. 18. ........ is a process that results in a bacterium becoming genetically different. 17. Host cell

20. V & B Test Answers. 19. B…… ........ is a process that starts with one cell and results in two genetically identical bacterium. 18. Conjugation

21. V & B Test Answers. 20. ........ is a process referred to as reproduction, but it starts and ends with two bacteria

22. V & B Test Answers. 21. ......... is a process that starts with one bacterium and ends with two bacteria.

23. V & B Test Answers. 22. The function of a virus's antigenic sites are to ........ to host cells.

24. V & B Test Answers. 23. ........ work by activating the body’s natural defenses /immune system ahead of time. 22.

25. 24. Put the events of an active virus infection in the order in which they happen. (SNB page 48)