Question 1

Which of the following microbes have been used as food products for human consumption?

Accepted Answer

A)  bacteria
B)  algae
C)  yeasts
D)  all of these choicesE) B) and D)
F) B) and C)

Question 2

The major use for microbially derived proteases is:

Accepted Answer

A)  in laundry detergents and drain cleaners
B)  as animal feed
C)  chemical modification of food additives
D)  in the production of high fructose corn syrupE) All of the above
F) A) and D)

Question 3

Why is Salmonella so often responsible for foodborne illnesses? Through what routes can it enter eggs? What are the safeguards one can take to protect against Salmonella-contaminated poultry,eggs and meats?

Accepted Answer

Salmonella is often responsible for food...

Question 4

To be suitable for industrial use,a microorganism should _____.

Accepted Answer

A)  grow rapidly and produce product in a relatively short period of time.
B)  be capable of growth and product formation in large scale culture.
C)  be genetically stable.
D)  all of these choices.E) B) and C)
F) None of the above

Question 5

Why is the alcohol content of wine around 12%?

Accepted Answer

A)  because federal regulation only allows that much
B)  because higher concentrations will kill the yeast
C)  it actually is 6%, but alcohol is added later
D)  bacterial content will die at higher concentrationsE) B) and C)
F) A) and D)

Question 6

Yeast is used to make all of the following food products except:

Accepted Answer

A)  buttermilk
B)  bread
C)  wine
D)  spiritsE) B) and C)
F) B) and D)

Question 7

The yeast responsible for wine and beer is generally:

Accepted Answer

A)  Candida
B)  Aspergillus
C)  Saccharomyces
D)  MucorE) A) and B)
F) B) and C)

Question 8

Which bacteria are responsible for nearly half the infections associated with mishandling of poultry in restaurants?

Accepted Answer

A)  Salmonella
B)  Pseudomonas
C)  Trichinella spiralis
D)  LactobacilliE) C) and D)
F) B) and C)

Question 9

What type of organism was used to help create this vaccination for Hepatitis B?

Accepted Answer

A)  Virus
B)  Fungi
C)  Protist
D)  Algae
E)  None of these choicesF) C) and D)
G) B) and D) B

Question 10

Which term is matched correctly?

Accepted Answer

A)  aflatoxin - carcinogenic in lungs
B)  ergot -- can be hallucinogenic
C)  lysozyme - found in egg yolks
D)  flat sours - occurs in cans left at room temperatureE) C) and D)
F) B) and D)

Question 11

Biohydrometallurgy is:

Accepted Answer

A)  the production of steroid hormones by microorganisms
B)  the utilization of microbes to extract metals from ores
C)  an effective method to prevent canned foods from becoming contaminated
D)  undertaken by large pharmaceutical companiesE) B) and C)
F) All of the above B

Question 12

Food contamination is due to:

Accepted Answer

A)  unsanitary practices by food handlers
B)  improper storage
C)  importation
D)  all of these choicesE) B) and C)
F) All of the above

Question 13

Which of the following organisms is the pink bread mold,which bakers especially fear because it is so difficult to eliminate in the bakery once it has been established?

Accepted Answer

A)  Rhizopus nigricans
B)  Aspergillus fumigatus
C)  Monilia sitophila
D)  Claviceps purpureaE) A) and D)
F) C) and D)

Question 14

Some strains of _______ can inhibit the growth of other organisms by decreasing the pH and making hydrogen peroxide.

Accepted Answer

A)  Lactobacillus
B)  Staphylococcus
C)  Vibrio
D)  ClostridiumE) A) and D)
F) A) and C)

Question 15

Food processing equipment is disinfected with _____.

Accepted Answer

A)  ultraviolet radiation
B)  formaldehyde
C)  gamma rays
D)  microwavesE) A) and D)
F) B) and C)

Question 16

Microorganisms have been proposed to produce ethanol for biofuel.Do you believe this will be a good alternative to petroleum or coal based energy? Does making energy from five-carbon or six-carbon sugars produce more energy? Justify your answer.

Accepted Answer

I believe that using microorganisms to p...

Question 17

Which statement about single-cell proteins is incorrect?

Accepted Answer

A)  Single-cell proteins are whole organisms rich in protein.
B)  They are used in the production of steroid hormones.
C)  They can make protein from cheap sources such as pulp or petroleum waste.
D)  They are currently used in animal feed.E) B) and D)
F) A) and B) B

Question 18

All of the following statements are true about bacterial contamination of melons except:

Accepted Answer

A)  cantaloupes are often contaminated because their netted surfaces allow biofilms to form
B)  surface pasteurization kills 99.999% of Salmonella but affects the quality of the melon
C)  melons can be surface pasteurized
D)  about 5% of melons imported into the United States have biofilm layers of SalmonellaE) B) and D)
F) C) and D)

Question 19

All of the following are true about microorganisms in food except:

Accepted Answer

A)  freezing kills most microbes that contaminate food
B)  many microbes find the high osmotic pressure in jam inhospitable
C)  scallops rarely transmit disease because only muscular portions are eaten
D)  chicken eggs are porous allowing the entry of bacteria as well as fungiE) B) and D)
F) A) and D)

Question 20

All of the following statements about spices are true except:

Accepted Answer

A)  they have a well deserved reputation as antimicrobials
B)  most microorganisms found in spices are not pathogens
C)  often mask odors of putrefaction
D)  while they teem with bacteria they aren't harmful as they are used in small amountsE) None of the above
F) B) and C)

Exam 26: Applied Microbiology

Which of the following microbes have been used as food products for human consumption?

Correct AnswerverifiedShow Answer

The major use for microbially derived proteases is:

Correct AnswerverifiedShow Answer

Why is Salmonella so often responsible for foodborne illnesses? Through what routes can it enter eggs? What are the safeguards one can take to protect against Salmonella-contaminated poultry,eggs and meats?

Correct AnswerAnswered by ExamLex AISalmonella is often responsible for food...View AnswerShow Answer

To be suitable for industrial use,a microorganism should _____.

Correct AnswerverifiedShow Answer

Why is the alcohol content of wine around 12%?

Correct AnswerverifiedShow Answer

Yeast is used to make all of the following food products except:

Correct AnswerverifiedShow Answer

The yeast responsible for wine and beer is generally:

Correct AnswerverifiedShow Answer

Which bacteria are responsible for nearly half the infections associated with mishandling of poultry in restaurants?

Correct AnswerverifiedShow Answer

What type of organism was used to help create this vaccination for Hepatitis B?

Correct AnswerverifiedB

Which term is matched correctly?

Correct AnswerverifiedShow Answer

Biohydrometallurgy is:

Correct AnswerverifiedB

Food contamination is due to:

Correct AnswerverifiedShow Answer

Which of the following organisms is the pink bread mold,which bakers especially fear because it is so difficult to eliminate in the bakery once it has been established?

Correct AnswerverifiedShow Answer

Some strains of _______ can inhibit the growth of other organisms by decreasing the pH and making hydrogen peroxide.

Correct AnswerverifiedShow Answer

Food processing equipment is disinfected with _____.

Correct AnswerverifiedShow Answer

Microorganisms have been proposed to produce ethanol for biofuel.Do you believe this will be a good alternative to petroleum or coal based energy? Does making energy from five-carbon or six-carbon sugars produce more energy? Justify your answer.

Correct AnswerAnswered by ExamLex AII believe that using microorganisms to p...View AnswerShow Answer

Which statement about single-cell proteins is incorrect?

Correct AnswerverifiedB

All of the following statements are true about bacterial contamination of melons except:

Correct AnswerverifiedShow Answer

All of the following are true about microorganisms in food except:

Correct AnswerverifiedShow Answer

All of the following statements about spices are true except:

Correct AnswerverifiedShow Answer

Correct Answer
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Answered by ExamLex AI
Salmonella is often responsible for food...
View Answer

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B

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B

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Correct Answer
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Correct Answer
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Correct Answer
Answered by ExamLex AI
I believe that using microorganisms to p...
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B

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Correct Answer
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