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Quiz Material
Quiz Material
Quiz Material
Quiz Material
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100
What is the enzyme that catalyzes this reaction: 2 H202 ----> 2 H20 + 02
What is Catalase
100
An organism can survive with/without oxygen but prefer to use oxygen due to aerobic respiration... how would you classify this organism?
What is facultative anaerobe
100
If a organism goes past the maximum temperature what will happen? Explain the bonds?
What is the proteins will denature affecting the structure. Hydrogen bonds will break due to high temperatures.
100
A bacteria that lives on human's skin are classified by what temperature range?
What is Mesophiles
100
How do bacteria divide?
What is Binary Fission
200
What do the bubbles represent in the Catalase Test?
What is Oxygen
200
This organism only requires a little oxygen (2-10%), how would you classify this?
What is microaerophiles
200
The membranes are temperature sensitive: if the temperature is too low, what happens to the membrane?
What is membrane will become rigid and fragile
200
A bacteria that lives at 11-14 pH is classified as what?
What is an alkalinophiles
200
Time required for a bacterial cell to grow and divide
What is Generation Time
300
If you complete the Catalase test and there are no bubbles, does the organism possess the enzyme catalase or no?
What is No
300
How would you classify the growth in broth drawn on the board??
What is Aerotolerant anaerobes
300
Many microbes can survive at temperature (above/below)?
What is below
300
A bacteria was placed in a 25% NaCl and the growth was not inhibited, the bacteria can be classified as what?
What is Halophiles
300
E. coli has a generation time of 20 minutes. You inoculate a culture with 20 cells. After 5 hours, how many bacteria are present?
What is Original number of cells * 2 ^# of generations 20*2^15
400
Can you name and describe each phase of the microbial growth curve drawn on the board?
What is Lag phase, log phase, stationary phase, and death phase.
500
How do bacteria talk to each other?
What is Quorum Sensing