Question 1

Downstream processing includes all the following except

Accepted Answer

A)  recovery.
B)  purification.
C)  packaging.
D)  growth of the microorganism.
E)  All of these choices are correct.F) C) and E)
G) B) and C)

Question 2

Which of the following enzymes are produced by microorganisms on an industrial scale?

Accepted Answer

A)  pectinase
B)  cellulase
C)  amylase
D)  keratinase
E)  All of these choices are correct.F) B) and D)
G) A) and E)

Question 3

A food _____ results from ingestion of exotoxin secreted by bacterial cells growing in the food.

Accepted Answer

The answer of A food _____ results from ingestion of...

Question 4

Which step in making beer involves sprouting and softening the barley to release amylases to act on starch, and proteases to digest protein?

Accepted Answer

A)  preparing a mash
B)  malting
C)  aging
D)  wort is boiled with hops
E)  fermentationF) None of the above
G) A) and D)

Question 5

A food _____ results from ingestion of whole microbial cells that target the intestine.

Accepted Answer

The answer of A food _____ results from ingestion of...

Question 6

All of the following are food-borne pathogens except

Accepted Answer

A)  Salmonella.
B)  Campylobacter.
C)  Streptococcus.
D)  Clostridium.
E)  Staphylococcus aureus.F) A) and E)
G) None of the above

Question 7

____________ proteins can be produced from waste materials such as molasses or petroleum by-products to be used as a food.

Accepted Answer

Single-cell

Question 8

Which of the following methods of food preservation are mismatched?

Accepted Answer

A)  sulfites - wines
B)  nitrites - bacon
C)  propionic acid - baked goods
D)  propylene oxide gas - dairy
E)  ethylene gas - spicesF) B) and C)
G) C) and D) D

Question 9

Which organism is used to make Swiss cheese?

Accepted Answer

A)  Saccharomyces cerevisiae
B)  Leuconostoc mesenteroides
C)  Streptococcus lactis and Lactobacillus
D)  Propionibacterium
E)  SpirulinaF) All of the above
G) C) and E) D

Question 10

Draw and label a generic microbial growth curve, including the points at which metabolites are formed.

Accepted Answer

A generic microbial growth curve typical...

Question 11

The fermentation of milk by Streptococcus thermophilus produces ___________.

Accepted Answer

The answer of The fermentation of milk by Streptococcus thermophilus...

Question 12

If vodka is 80 proof, it contains 40% ethyl alcohol.

Accepted Answer

A) True 
 B)False

Question 13

Organisms from the genus Aspergillus are used in the production of

Accepted Answer

A)  pectinase.
B)  proteases.
C)  cellulase.
D)  amylase.
E)  All of these choices are correct.F) B) and D)
G) B) and C)

Question 14

There are a few places in the United States that use ozone or peroxide for final disinfection of water.

Accepted Answer

A) True 
 B)False

Question 15

A strain of ____________ is being considered to control the mosquito vector of malaria.

Accepted Answer

Bacillus t...

Question 16

A _____ is a device used for growing mass cultures.

Accepted Answer

The answer of A _____ is a device used for...

Question 17

Preservation of food to limit microbial survival and growth includes

Accepted Answer

A)  high temperature.
B)  pasteurization.
C)  refrigeration and freezing.
D)  irradiation.
E)  All of these choices are correct.F) None of the above
G) A) and E)

Question 18

__________ metabolites are by-products of metabolism and essential to the microbe's function.

Accepted Answer

The answer of __________ metabolites are by-products of metabolism and...

Question 19

The process of activating sludge from wastewater involves

Accepted Answer

A)  chlorination.
B)  filtration.
C)  aeration and stirring.
D)  radiation.
E)  heat and pressure.F) C) and E)
G) A) and D)

Question 20

Vinegar can be produced when alcohol in wine is oxidized to acetic acid.

Accepted Answer

A) True 
 B)False

Exam 27: Applied and Industrial Microbiology

Downstream processing includes all the following except

Correct AnswerverifiedShow Answer

Which of the following enzymes are produced by microorganisms on an industrial scale?

Correct AnswerverifiedShow Answer

A food _____ results from ingestion of exotoxin secreted by bacterial cells growing in the food.

Correct AnswerverifiedShow Answer

Which step in making beer involves sprouting and softening the barley to release amylases to act on starch, and proteases to digest protein?

Correct AnswerverifiedShow Answer

A food _____ results from ingestion of whole microbial cells that target the intestine.

Correct AnswerverifiedShow Answer

All of the following are food-borne pathogens except

Correct AnswerverifiedShow Answer

____________ proteins can be produced from waste materials such as molasses or petroleum by-products to be used as a food.

Correct AnswerverifiedSingle-cell

Which of the following methods of food preservation are mismatched?

Correct AnswerverifiedD

Which organism is used to make Swiss cheese?

Correct AnswerverifiedD

Draw and label a generic microbial growth curve, including the points at which metabolites are formed.

Correct AnswerAnswered by ExamLex AIA generic microbial growth curve typical...View AnswerShow Answer

The fermentation of milk by Streptococcus thermophilus produces ___________.

Correct AnswerverifiedShow Answer

If vodka is 80 proof, it contains 40% ethyl alcohol.

Correct AnswerverifiedShow Answer

Organisms from the genus Aspergillus are used in the production of

Correct AnswerverifiedShow Answer

There are a few places in the United States that use ozone or peroxide for final disinfection of water.

Correct AnswerverifiedShow Answer

A strain of ____________ is being considered to control the mosquito vector of malaria.

Correct AnswerverifiedBacillus t...View AnswerShow Answer

A _____ is a device used for growing mass cultures.

Correct AnswerverifiedShow Answer

Preservation of food to limit microbial survival and growth includes

Correct AnswerverifiedShow Answer

__________ metabolites are by-products of metabolism and essential to the microbe's function.

Correct AnswerverifiedShow Answer

The process of activating sludge from wastewater involves

Correct AnswerverifiedShow Answer

Vinegar can be produced when alcohol in wine is oxidized to acetic acid.

Correct AnswerverifiedShow Answer

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Single-cell

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D

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Answered by ExamLex AI
A generic microbial growth curve typical...
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Bacillus t...
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