11. | Isolation of pure culture refers to ___________ |
a. | purification of culture |
b. | introduction of inoculum |
c. | separation of a single colony |
d. | to grow microorganisms on a surface |
View Answer Report Discuss 50-50! |
Answer: (c).separation of a single colony
|
12. | Enrichment media allows the growth of a large number of varied bacterial species. |
a. | True |
b. | Flase |
c. | May be |
d. | Can't say |
View Answer Report Discuss 50-50! |
Answer: False
|
13. | Which of the following is not a physical method for selection of pure culture? |
a. | Heat treatment |
b. | pH of the media |
c. | Cell size and motility |
d. | Use of dilute media |
View Answer Report Discuss 50-50! |
Answer: (d).Use of dilute media
|
14. | In physical method of selection, endospore-forming bacteria can be obtained by heating the mixed culture to _____________ |
a. | 70 degree C for 10 minutes |
b. | 80 degree C for 10 minutes |
c. | 60 degree C for 10 minutes |
d. | 90 degree C for 10 minutes |
View Answer Report Discuss 50-50! |
Answer: (b).80 degree C for 10 minutes
|
15. | Vibrio cholerae can grow in a medium with a pH of _______ |
a. | 5.5 |
b. | 7.0 |
c. | 8.5 |
d. | 2.0 |
View Answer Report Discuss 50-50! |
Answer: (c).8.5
|