Ch 20 Bacteria and viruses

1. Jeopardy Ch 20 Bacteria and viruses

2. Choice1 Choice 2 Choice 3 Choice 4 100 100 100 100 200 200 200 200 300 300 300 300 400 400 400 400 500 500 500 500

3. Row 1, Col 1 contain a single circular piece of DNA describe the chromosomes of bacteria

4. 1,2 circular chromosomes Structures found in bacterial cells but not in eukaryotic cells are

5. 1,3 Bacillus. Organism B has a shape similar to that of

6. 1,4 plasmids Bacteria often have small extra loops of DNA called

7. 2,1 ribosomes Cell organelles that Escherichia coli and other bacteria have in common with eukaryotes are

8. 2,2 Gram-negative and Gram-positive bacteria differ in their response to different antibiotics. It is important to distinguish between Gram-positive and Gram-negative bacteria in diagnosing a bacterial infection because

9. 2,3 Streptococcus, which causes strep throat Organism A applies to the bacterial genus

10. 2,4 an outer cell wall made up of carbohydrates and proteins One difference between the cells in a human body and bacterial cells is that bacterial cells have

11. 3,1 both a cell membrane and an outer cell wall. Bacterial cells have

12. 3,2 light. Cyanobacteria are photoautotrophs because they require.

13. 3,3 a spirillum Organism C is.

14. 3,4 convert atmospheric nitrogen into a usable form of nitrogen. Nitrogen-fixing bacteria

15. 4,1 conjugation Bacterial cells such as Escherichia coli transfer pieces of genetic material in a process called

16. 4,2 Bacterial endospores allows certain species to survive harsh environmental conditions

17. 4,3 are active inside living cells The study of viruses is a part of biology because viruses

18. 4,4 The host cell is destroyed in a lytic cycle. How is a lytic cycle different from a lysogenic cycle?

19. 5,1 reproduces only with a lytic cycle A virulent virus is one that

20. 5,2 antibiotics interfere with metabolic processes that viruses do not perform Antibiotics are ineffective against viral infections because

21. 5,3 forming toxins Bacteria cause disease by

22. 5,4 Prions change the shape of normal proteins