V & B Test Answers .

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.

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. .....viruses begin to multiply immediately after infecting a host cell.

2. bacteria

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(SNB pages 60 & 61. Cornell w/ summary)4. Breaking down large chemicals into

smaller chemicals is done by organisms called .......

3. active

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(SNB pages 60 & 61. Cornell w/ summary)5. Viruses attack …… kinds of cells.orWhat kind of cells do viruses attack?.......

4. Decomposers

Any kind of cell can be a host cell.

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(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

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(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. AntibioticsViruses are not cells so they are not living

so antibiotics don’t work on them.

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(SNB pages 60 & 61. Cornell w/ summary)8. The rigid protective structure around a

bacterium is called a .......

7. prokaryote

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(SNB pages 60 & 61. Cornell w/ summary)8. The rigid protective structure around a

bacterium is called a .......

7. prokaryote

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(SNB pages 60 & 61. Cornell w/ summary)9. Producing energy by breaking down

sugar is called………..

8. Cell wall

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.

11. Viruses destroy their host cells, so they act like .......

10. Bacteriophage “phage”

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12. …….. …….. , cheese, and vinegar are produced with the help of bacteria.

11. parasite

13. Viruses are ......... than cells. (Size comparison)

12. Sour dough bread

14. ........ are found in the cytoplasm of both bacteria and eukaryotic cells.

13. Much smaller

15. When bacteria experience unfavorable conditions they form .......

14. Ribosomes

16. Viruses are not cells, so they are considered .......

15. endospore

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17. Viruses are provided energy by their .........

16. nonliving

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18. ........ is a process that results in a bacterium becoming genetically different.

17. Host cell

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19. B…… ........ is a process that starts with one cell and results in two genetically identical bacterium.

18. Conjugation

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20. ........ is a process referred to as reproduction, but it starts and ends with two bacteria

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21. ......... is a process that starts with one bacterium and ends with two bacteria.

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22. The function of a virus's antigenic sites are to ........ to host cells.

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23. ........ work by activating the body’s natural defenses /immune system ahead of time.

22.

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