Barbosa's Exam 3
Alcohol fermentation is carried out by a number of bacteria and yeast. All are
characteristics of alcohol fermentation except: - ✔️✔️2 pyruvic acids are reduced by
NADH to form lactic acid
Most fungi, such as molds and yeasts grow best at pH: - ✔️✔️5-6
Which of the following pairs of microbe classification terms and optimal growth
temperature is mismatched?: - ✔️✔️thermophile- growth at 40C
Which of the following best describes the pattern of microbial death? - ✔️✔️The cells in
a population die at a constant rate
What is the net gain of ATP for each molecule of glucose oxidated in glycolysis? -
✔️✔️2
Pathogenic bacteria isolated from the respiratory or intestinal tracts of humans are: -
✔️✔️capnophiles that grow best in carbon dioxide incubators
The biosafety level (BSL) for most introductory microbiology labratories is: - ✔️✔️BSL-
1
The biosafety level (BSL) for a clinical microbiology labratory working with potentially
airborne pathogens;such as tuberculosis bacteria is: - ✔️✔️BSL-4
Salts and sugars work to preserve foods by creating a: - ✔️✔️hyptertonic enviroment
In the figure above, which section shows a growth phase where the number of cells
dying equals than the number of cells dividing: - ✔️✔️c
In the figure above, lag phase is indicated by: - ✔️✔️a
In the figure above, which section shows a growth where the number of cells dying is
greater than the number of cells dividing: - ✔️✔️d
Which of the following are enzymes? - ✔️✔️1. dehydrogenase
2. lysosome
3. trypsin
Enzymes function in chemical reactions to: - ✔️✔️lower the energy of activation
Alcohol fermentation is carried out by a number of bacteria and yeast. All are
characteristics of alcohol fermentation except: - ✔️✔️2 pyruvic acids are reduced by
NADH to form lactic acid
Most fungi, such as molds and yeasts grow best at pH: - ✔️✔️5-6
Which of the following pairs of microbe classification terms and optimal growth
temperature is mismatched?: - ✔️✔️thermophile- growth at 40C
Which of the following best describes the pattern of microbial death? - ✔️✔️The cells in
a population die at a constant rate
What is the net gain of ATP for each molecule of glucose oxidated in glycolysis? -
✔️✔️2
Pathogenic bacteria isolated from the respiratory or intestinal tracts of humans are: -
✔️✔️capnophiles that grow best in carbon dioxide incubators
The biosafety level (BSL) for most introductory microbiology labratories is: - ✔️✔️BSL-
1
The biosafety level (BSL) for a clinical microbiology labratory working with potentially
airborne pathogens;such as tuberculosis bacteria is: - ✔️✔️BSL-4
Salts and sugars work to preserve foods by creating a: - ✔️✔️hyptertonic enviroment
In the figure above, which section shows a growth phase where the number of cells
dying equals than the number of cells dividing: - ✔️✔️c
In the figure above, lag phase is indicated by: - ✔️✔️a
In the figure above, which section shows a growth where the number of cells dying is
greater than the number of cells dividing: - ✔️✔️d
Which of the following are enzymes? - ✔️✔️1. dehydrogenase
2. lysosome
3. trypsin
Enzymes function in chemical reactions to: - ✔️✔️lower the energy of activation
