Selective Methods

 

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Selective Methods

Question 1
A large cluster of colonies are obtained in streak plate method.
A
True
B
False

Question 2
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

Question 3
Treponema sp. can be selected by taking advantage of .....
A
small cell size
B
motility
C
dilute media
D
small cell diameter and bacterial motility

Question 4
Vibrio cholerae can grow in a medium with a pH of .....
A
5.5
B
7
C
8.5
D
2

Question 5
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

Question 6
Enrichment media allows the growth of a large number of varied bacterial species.
A
True
B
False

Question 7
Disease-producing species occurring in a mixed culture can be selected by taking advantage of .....
A
its pathogenic properties
B
special carbon source
C
special nitrogen source
D
toxic chemicals

Question 8
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
There are 8 questions to complete.

 

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