Physical Conditions Required for Growth

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Physical Conditions Required for Growth

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The Reactive Oxygen Species(ROS) poduced by some bacteria are degraded by which of the following enzymes?
A
Peroxidase
B
Lyase
C
Catalase
D
Superoxide dismutase, Catalase and Peroxidase
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following are functions of phosphates used in the preparation of media?
A
they act as buffer
B
source of phosphorous
C
act as "reserve alkali"
D
they act as buffer and is a source of phosphorous
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Mesophiles are group of bacteria that grow within the temperature range of?
A
0-20 degree Celsius
B
25-40 degree Celsius
C
45-60 degree Celsius
D
more than 60 degree Celsius
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following factors are responsible for the stability of thermophiles at high temperatures?
A
increased leakage of cell components
B
presence of large no. of polar amino acids and alpha-helix protein
C
thermal stability of ribosomes
D
presence of Inositol diphosphate and thermal stability of ribosomes
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The GasPak system is suitable for which of the following?
A
Aerobic bacteria
B
Anaerobic bacteria
C
Facultatively anaerobic bacteria
D
Microaerophilic bacteria
There are 5 questions to complete.