E-PolyLearning

51. Which of the following is used as a solidifying agent for media?
a. Beef extract
b. Peptone
c. Agar
d. Yeast extract
View Answer Report Discuss 50-50!
Answer: (c).Agar

52. Which of the following is a rich source of B vitamins?
a. Peptone
b. Yeast extract
c. Beef extract
d. Agar
View Answer Report Discuss 50-50!
Answer: (b).Yeast extract

53. The isolation of gonorrhea-causing organism, Neisseria gonorrhoeae by the use of certain antibiotics in media is an example of which of the following?
a. Selective media
b. Differential media
c. Enriched media
d. Assay media
View Answer Report Discuss 50-50!
Answer: (a).Selective media

54. Nutrient broth, a liquid media contains beef extract and peptone respectively in how much amounts?
a. 0.2%, 0.4%
b. 0.1%, 0.6%
c. 0.3%, 0.5%
d. 0.7%, 0.3%
View Answer Report Discuss 50-50!
Answer: (c).0.3%, 0.5%

55. Which of the following instrument is used for sterilizing the media after it has been prepared?
a. Autoclave
b. Laminar Air Flow Chamber
c. Inoculum Needle
d. Incubator
View Answer Report Discuss 50-50!
Answer: (a).Autoclave