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WorksheetsCourse Audit - Summative Assessment # 2
Total questions: 10
Worksheet time: 5mins
Microbial phase where the Build up of toxic materials and other factors.starts.
Stationary Phase
Log Phase
Lag Phase
Death Phase
This is the maximum growth for most microorganisms
1 x 10^7
1 x 10^8
1 x 10^9
1 x 10^6
No known pathogen grows below pH of ___.
2.6
3.6
4.6
5.6
Optimal pH range for microbial growth in food
3.5-4.4
4.5-5.4
5.5-6.5
6.6-7.5
Which of the following is NOT a humectant?
Salt
Sugar
Vegetable oil
Propylene Glycol
Lowest water activity for pathogen growth
0.86
0.76
0.66
0.56
Dry environment-loving microorganisms
Osmophilic
Halophilic
Xerophilic
None of the above
Salt-loving microorganisms
Xerophilic
Halophilic
Osmophilic
None of the above
Type of microorganisms that requires little oxygen.
Aerobic
Anaerobic
Facultative anaerobes
Microaerophiles
Microorganisms that are both aerobic and anaerobic
Microaerophiles
Facultative anaerobes
Both microaerophiles and facultative anaerobes
None of the above
