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What role do lactic acid bacteria play in cheese production?


A) curd formation
B) production of holes in Swiss cheese
C) ripening the cheese
D) providing characteristic flavor and smell
E) Lactic acid bacteria carry out each of these roles in cheese production.

F) None of the above
G) B) and E)

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Radiation works to preserve foods through


A) creation of an anaerobic environment.
B) creation of an anaerobic environment and high heat.
C) exposure to high heat.
D) lethal mutation/destruction of bacterial DNA.
E) increasing pH.

F) A) and B)
G) None of the above

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All of the following are industrial products produced in very large amounts by microbes and then purified for use EXCEPT


A) amino acids in food supplements.
B) antibiotics.
C) industrial enzymes.
D) wine.
E) vitamin B12 and riboflavin.

F) A) and E)
G) A) and D)

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The field of study related to study of small molecule chemical fingerprints of cellular processes is known as


A) metabolomics.
B) bioconversion.
C) fermentation.
D) food preservation.
E) biofuel production.

F) C) and E)
G) C) and D)

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All of the following are uses for ionizing or ultraviolet radiation EXCEPT


A) heating cold food.
B) sterilizing spices.
C) inactivation of Trichinella larvae.
D) killing of insect eggs and larva.
E) prevention of sprouting.

F) A) and C)
G) B) and D)

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