Food microbiology Exam Quiz and
answers graded A+
The 12D treatment refers to applying heat sufficient to kill __________. - ANS✅✅10^12 C.
botulinum endospores
Commercial sterilization of canned foods is necessary for all of the following reasons EXCEPT
__________.
to kill disease-causing organisms
to increase shelf life
to kill spoilage organisms
to cook the food - ANS✅✅to cook the food
Which of the following would produce low-calorie ("light") beer? - ANS✅✅ferment more of the
carbohydrates
Many of the microorganisms involved in making various fermented dairy products are __________. -
ANS✅✅lactic acid bacteria
Ionizing radiation is used for all of the following EXCEPT __________. - ANS✅✅inactivating prions
in meats
Yeast growing in a bioreactor will eventually produce enough alcohol that the level becomes toxic,
and they will die. What could you do to reduce their alcohol production? - ANS✅✅add oxygen
The following steps are used in the manufacture of cheese. Which step uses Propionibacterium? -
ANS✅✅production of carbon dioxide
Microbes are used to make ethanol for fuel, citric acid for flavoring, steroids for pharmaceuticals,
and amino acids for food supplements. Which of these is made by fermentation of carbohydrates? -
ANS✅✅ethanol
answers graded A+
The 12D treatment refers to applying heat sufficient to kill __________. - ANS✅✅10^12 C.
botulinum endospores
Commercial sterilization of canned foods is necessary for all of the following reasons EXCEPT
__________.
to kill disease-causing organisms
to increase shelf life
to kill spoilage organisms
to cook the food - ANS✅✅to cook the food
Which of the following would produce low-calorie ("light") beer? - ANS✅✅ferment more of the
carbohydrates
Many of the microorganisms involved in making various fermented dairy products are __________. -
ANS✅✅lactic acid bacteria
Ionizing radiation is used for all of the following EXCEPT __________. - ANS✅✅inactivating prions
in meats
Yeast growing in a bioreactor will eventually produce enough alcohol that the level becomes toxic,
and they will die. What could you do to reduce their alcohol production? - ANS✅✅add oxygen
The following steps are used in the manufacture of cheese. Which step uses Propionibacterium? -
ANS✅✅production of carbon dioxide
Microbes are used to make ethanol for fuel, citric acid for flavoring, steroids for pharmaceuticals,
and amino acids for food supplements. Which of these is made by fermentation of carbohydrates? -
ANS✅✅ethanol
