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UF MCB3020 EXAM 4 BACUSMO QUESTIONS AND ANSWERS
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UF MCB3020 EXAM 4 BACUSMO QUESTIONS AND ANSWERS
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Name: Score:50 Multiple choice questions
Term 1 of 50
What is sour mash inoculated from?
Lactic, Propionic, and Alcoholic fermentations
Homolactic bacterium
germinated barley grains having activated enzymes
Lactobacillus species
Term 2 of 50
d.) Mold-lactic fermentation:
Contains dead microbes or their fragments that can neither replicate nor mutate to a
more virulent form
Kefir
Viili
Contains strains of live microorganisms that have undergone the process of attenuation,
which makes them less virulent
Term 3 of 50
e.) Toxoid Vaccines
Contains strains of live microorganisms that have undergone the process of attenuation,
which makes them less virulent
An increase in the occurrence of disease within a large population
The study of the origin, causer distribution, and spread of disease
Contain chemically or thermally modified toxins
,Term 4 of 50
c.) Wort
the malt after being mixed with water in order to hydrolyze starch to usable
carbohydrates
Lactic, Propionic, and Alcoholic fermentations
First case in an epidemic
Liquid portion of mixture
Term 5 of 50
True or False: Control measures for microorganisms should be directed toward the part of the
disease cycle that is most susceptible to control.
True
False
Term 6 of 50
b.) Endemic disease:
Occurs regularly at a low level of frequency and at moderately regular intervals
Increases gradually above the level of an endemic disease, but not enough to qualify as
an epidemic
Consist of purified parts of the microorganism
An increase in the occurrence of disease within a large population
,Term 7 of 50
Define probiotics. Give an example
The study of the ecological and social factors that influence the development of
emerging ad reemerging infectious disease.
Branch of applied microbiology in which microorganisms are used in industrial
processes such as the production of drugs, chemicals, and fuels i. Example:
Magnetosomes
A live microorganisms, which when administered in adequate amounts, confer a health
benefit to the host
Example: Lactobacilli and Bifidobacteria are in yogurt
1. Fermentation: involves the growth of microbes in large volumes for the production of
industrially important products
2. Starter culture: the preparation of living microorganisms that are deliberately used to
assist the beginning of fermentation
Term 8 of 50
1. Define the following terms:
a.) Sporadic disease:
Consist of whole microorganisms
germinated barley grains having activated enzymes
Occurs occasionally, at irregular intervals
Lactic, Propionic, and Alcoholic fermentations
Term 9 of 50
1. Provide an example of a product of the following fermentation types:
a.) Mesophilic fermentation:
Occurs occasionally, at irregular intervals
buttermilk, sour cream
Consist of whole microorganisms
Lactobacillus, Lactococcus, Leuconostoc, and Streptococcus
, Term 10 of 50
Define and describe the three numerical measures of disease frequency.
1. Fermentation: involves the growth of microbes in large volumes for the production of
industrially important products
2. Starter culture: the preparation of living microorganisms that are deliberately used to
assist the beginning of fermentation
1. Morbidity Rate: the number of new cases of a disease during a particular period, as a
fraction of the population size.
a. # of new cases during specific period/ Total population size
2. Prevalence Rate: measures the total number of infected individuals in the population
at any given time, as a share of the total population size
a. # of cases in a population/ Total population size
3. Mortality Rate: the number of deaths from a given disease, as a fraction of overall
cases of that disease.
a. # of deaths to given disease/ size of population with disease
A live microorganisms, which when administered in adequate amounts, confer a health
benefit to the host
Example: Lactobacilli and Bifidobacteria are in yogurt
Branch of applied microbiology in which microorganisms are used in industrial
processes such as the production of drugs, chemicals, and fuels i. Example:
Magnetosomes
Term 11 of 50
True or False: Epidemiologists frequently draw on knowledge from the field of statistics.
True
False
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