Growth and Nutrition of Bacteria

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Growth and Nutrition of Bacteria

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Microaerophilic bacteria are those which require
A
21 % oxygen for growth
B
low levels of oxygen for growth (lesser than O$_{2}$ present in atmosphere)
C
oxygen for activation of enzymes
D
none of the above
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The ability of Vibrio fischeri to produce bioluminescence chemicals only when a certain population density has been reached is an example of
A
Liebig's law of the minimum
B
Shelford's law of tolerance
C
quorum sensing
D
Heisenberg's principle of uncertainty
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Organisms, using organic compounds as electron donors are called
A
lithotrophs
B
phototrophs
C
chemotrophs
D
organotrophs
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Nutrient content and biological structures are considered as
A
implicit factor for microbial growth
B
intrinsic factor for microbial growth
C
processing factor
D
none of the above
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is used to grow bacterial cultures continuously?
A
Chemostat
B
Coulter Counter
C
Hemostat
D
Petroff-Hausser chamber
There are 5 questions to complete.