Food Science and Technology MCQs with Answers
Which of the following is a macronutrient found in high amounts in carbohydrates?
a) Vitamin C
b) Calcium
c) Protein
d) Iron
Answer: c) Protein
What is the process of breaking down complex carbohydrates into simpler sugars called?
a) Fermentation
b) Hydrolysis
c) Oxidation
d) Polymerization
Answer: b) Hydrolysis
Which of the following is a food preservation method that involves removing moisture from food?
a) Canning
b) Freezing
c) Dehydration
d) Pasteurization
Answer: c) Dehydration
What is the process of converting milk into cheese called?
a) Fermentation
b) Homogenization
c) Coagulation
d) Emulsification
Answer: c) Coagulation
Which of the following is a food additive used to enhance the flavor of food?
a) Preservative
b) Emulsifier
c) Sweetener
d) Flavor enhancer
Answer: d) Flavor enhancer
What is the process of killing harmful bacteria in food by applying high heat called?
a) Freezing
b) Fermentation
c) Sterilization
d) Pasteurization
Answer: d) Pasteurization
Which of the following is a method of food preservation that involves sealing food in airtight containers?
a) Canning
b) Freezing
c) Dehydration
d) Fermentation
Answer: a) Canning
What is the process of converting sugars into alcohol and carbon dioxide by yeast called?
a) Fermentation
b) Hydrolysis
c) Oxidation
d) Polymerization
Answer: a) Fermentation
Which of the following is a foodborne pathogen commonly associated with undercooked poultry?
a) Salmonella
b) E. coli
c) Listeria
d) Staphylococcus
Answer: a) Salmonella
What is the process of preserving food by subjecting it to extremely low temperatures called?
a) Canning
b) Freezing
c) Dehydration
d) Pasteurization
Answer: b) Freezing
Which of the following is a food preservation method that involves heating food to kill or deactivate microorganisms?
a) Canning
b) Freezing
c) Sterilization
d) Fermentation
Answer: c) Sterilization
What is the process of breaking down fats into glycerol and fatty acids called?
a) Fermentation
b) Hydrolysis
c) Oxidation
d) Polymerization
Answer: b) Hydrolysis
Which of the following is a food additive used to preserve the freshness and quality of food?
a) Flavor enhancer
b) Emulsifier
c) Preservative
d) Sweetener
Answer: c) Preservative
What is the process of converting liquid oils into solid fats through hydrogenation called?
a) Fermentation
b) Homogenization
c) Hydrolysis
d) Partial hydrogenation
Answer: d) Partial hydrogenation
Which of the following is a food preservation method that involves heating food at a high temperature for a short time?
a) Canning
b) Freezing
c) Dehydration
d) Pasteurization
Answer: d) Pasteurization
What is the process of preserving food by adding salt or sugar called?
a) Canning
b) Freezing
c) Salting
d) Sugaring
Answer: c) Salting
Which of the following is a foodborne pathogen commonly associated with raw or undercooked eggs?
a) Salmonella
b) E. coli
c) Listeria
d) Staphylococcus
Answer: a) Salmonella
What is the process of breaking down proteins into amino acids called?
a) Fermentation
b) Hydrolysis
c) Oxidation
d) Polymerization
Answer: b) Hydrolysis
Which of the following is a food additive used to stabilize mixtures of oil and water?
a) Flavor enhancer
b) Emulsifier
c) Preservative
d) Sweetener
Answer: b) Emulsifier
What is the process of converting milk into yogurt called?
a) Fermentation
b) Homogenization
c) Coagulation
d) Emulsification
Answer: a) Fermentation
Which of the following is a method of food preservation that involves removing oxygen from the packaging?
a) Canning
b) Freezing
c) Dehydration
d) Vacuum sealing
Answer: d) Vacuum sealing
What is the process of converting liquid oils into solid fats without partial hydrogenation called?
a) Fermentation
b) Homogenization
c) Hydrolysis
d) Interesterification
Answer: d) Interesterification
Which of the following is a foodborne pathogen commonly associated with raw or undercooked ground meat?
a) Salmonella
b) E. coli
c) Listeria
d) Staphylococcus
Answer: b) E. coli
What is the process of converting starches into simpler sugars by enzymes called?
a) Fermentation
b) Hydrolysis
c) Oxidation
d) Polymerization
Answer: b) Hydrolysis
Which of the following is a food additive used to enhance the taste of food?
a) Preservative
b) Flavor enhancer
c) Emulsifier
d) Sweetener
Answer: b) Flavor enhancer
What is the process of converting liquid oils into solid fats through the rearrangement of fatty acids called?
a) Fermentation
b) Homogenization
c) Hydrolysis
d) Interesterification
Answer: d) Interesterification
Which of the following is a method of food preservation that involves heating food in a sealed container under high pressure?
a) Canning
b) Freezing
c) Sterilization
d) Fermentation
Answer: c) Sterilization
What is the process of breaking down complex fats into glycerol and fatty acids called?
a) Fermentation
b) Hydrolysis
c) Oxidation
d) Polymerization
Answer: b) Hydrolysis
Which of the following is a foodborne pathogen commonly associated with ready-to-eat deli meats?
a) Salmonella
b) E. coli
c) Listeria
d) Staphylococcus
Answer: c) Listeria
What is the process of converting liquid oils into solid fats through the addition of hydrogen called?
a) Fermentation
b) Homogenization
c) Hydrolysis
d) Hydrogenation
Answer: d) Hydrogenation
Which of the following is a food preservation method that involves removing microorganisms by heating food to a high temperature for a long time?
a) Canning
b) Freezing
c) Sterilization
d) Fermentation
Answer: c) Sterilization
What is the process of converting milk into butter called?
a) Fermentation
b) Homogenization
c) Churning
d) Emulsification
Answer: c) Churning
Which of the following is a food additive used to sweeten food without adding calories?
a) Flavor enhancer
b) Emulsifier
c) Preservative
d) Non-nutritive sweetener
Answer: d) Non-nutritive sweetener
What is the process of converting sugars into alcohol, carbon dioxide, and acids by microorganisms called?
a) Fermentation
b) Hydrolysis
c) Oxidation
d) Polymerization
Answer: a) Fermentation
Which of the following is a method of food preservation that involves removing water from food by freezing it under low pressure?
a) Canning
b) Freeze-drying
c) Dehydration
d) Pasteurization
Answer: b) Freeze-drying
What is the process of converting milk into condensed milk called?
a) Fermentation
b) Homogenization
c) Evaporation
d) Emulsification
Answer: c) Evaporation
Which of the following is a foodborne pathogen commonly associated with contaminated water and raw fruits and vegetables?
a) Salmonella
b) E. coli
c) Listeria
d) Norovirus
Answer: d) Norovirus
What is the process of converting proteins into simpler amino acids by enzymes called?
a) Fermentation
b) Hydrolysis
c) Oxidation
d) Polymerization
Answer: b) Hydrolysis
Which of the following is a food additive used to stabilize mixtures of oil and water and prevent separation?
a) Flavor enhancer
b) Emulsifier
c) Preservative
d) Sweetener
Answer: b) Emulsifier
What is the process of converting milk into evaporated milk called?
a) Fermentation
b) Homogenization
c) Evaporation
d) Emulsification
Answer: c) Evaporation
Which of the following is a method of food preservation that involves treating food with high levels of ionizing radiation?
a) Canning
b) Freezing
c) Irradiation
d) Fermentation
Answer: c) Irradiation
What is the process of converting milk into powdered milk called?
a) Fermentation
b) Homogenization
c) Spray drying
d) Emulsification
Answer: c) Spray drying
Which of the following is a foodborne pathogen commonly associated with contaminated seafood?
a) Salmonella
b) E. coli
c) Listeria
d) Vibrio
Answer: d) Vibrio
What is the process of converting sugars into alcohol and carbon dioxide by yeast in the absence of oxygen called?
a) Fermentation
b) Hydrolysis
c) Oxidation
d) Polymerization
Answer: a) Fermentation
Which of the following is a food additive used to provide sweetness to food?
a) Preservative
b) Flavor enhancer
c) Emulsifier
d) Sweetener
Answer: d) Sweetener
What is the process of converting liquid oils into solid fats through the addition of interesterified fats called?
a) Fermentation
b) Homogenization
c) Hydrolysis
d) Interesterification
Answer: d) Interesterification
Which of the following is a method of food preservation that involves subjecting food to high heat to kill microorganisms?
a) Canning
b) Freezing
c) Sterilization
d) Pasteurization
Answer: c) Sterilization
What is the process of converting milk into cream called?
a) Fermentation
b) Homogenization
c) Separation
d) Emulsification
Answer: c) Separation
Which of the following is a foodborne pathogen commonly associated with contaminated raw or undercooked seafood?
a) Salmonella
b) E. coli
c) Listeria
d) Vibrio
Answer: d) Vibrio
What is the process of converting complex carbohydrates into simpler sugars by enzymes called?
a) Fermentation
b) Hydrolysis
c) Oxidation
d) Polymerization
Answer: b) Hydrolysis
Which of the following is a food additive used to preserve the texture and consistency of food?
a) Flavor enhancer
b) Emulsifier
c) Stabilizer
d) Sweetener
Answer: c) Stabilizer
What is the process of converting milk into whipped cream called?
a) Fermentation
b) Homogenization
c) Whipping
d) Emulsification
Answer: c) Whipping
Which of the following is a method of food preservation that involves storing food in airtight containers with salt or sugar?
a) Canning
b) Freezing
c) Salting
d) Sugaring
Answer: c) Salting
What is the process of converting proteins into simpler compounds through heat and acid called?
a) Fermentation
b) Hydrolysis
c) Denaturation
d) Polymerization
Answer: c) Denaturation
Which of the following is a foodborne pathogen commonly associated with contaminated raw or undercooked shellfish?
a) Salmonella
b) E. coli
c) Listeria
d) Vibrio
Answer: d) Vibrio
What is the process of converting liquid oils into solid fats through the addition of fats and emulsifiers called?
a) Fermentation
b) Homogenization
c) Hydrolysis
d) Interesterification
Answer: d) Interesterification
Which of the following is a method of food preservation that involves removing water from food through the application of heat?
a) Canning
b) Freezing
c) Dehydration
d) Pasteurization
Answer: c) Dehydration
What is the process of converting milk into a stable emulsion called?
a) Fermentation
b) Homogenization
c) Coagulation
d) Emulsification
Answer: b) Homogenization
Which of the following is a food additive used to enhance the shelf life of food by inhibiting microbial growth?
a) Flavor enhancer
b) Emulsifier
c) Preservative
d) Sweetener
Answer: c) Preservative
What is the process of converting milk into ice cream called?
a) Fermentation
b) Homogenization
c) Churning
d) Emulsification
Answer: c) Churning
Which of the following is a method of food preservation that involves storing food at temperatures below freezing point?
a) Canning
b) Freezing
c) Dehydration
d) Fermentation
Answer: b) Freezing
What is the process of converting liquid oils into solid fats through the addition of interesterified fats and partial hydrogenation called?
a) Fermentation
b) Homogenization
c) Hydrolysis
d) Interesterification
Answer: d) Interesterification
Which of the following is a foodborne pathogen commonly associated with contaminated raw or undercooked poultry and eggs?
a) Salmonella
b) E. coli
c) Listeria
d) Staphylococcus
Answer: a) Salmonella
What is the process of converting complex fats into simpler compounds through heat called?
a) Fermentation
b) Hydrolysis
c) Oxidation
d) Polymerization
Answer: c) Oxidation
Which of the following is a food additive used to enhance the flavor and aroma of food?
a) Preservative
b) Flavor enhancer
c) Emulsifier
d) Sweetener
Answer: b) Flavor enhancer
What is the process of converting milk into a stable mixture of fat and water called?
a) Fermentation
b) Homogenization
c) Coagulation
d) Emulsification
Answer: b) Homogenization
Which of the following is a method of food preservation that involves heating food to a high temperature and quickly cooling it?
a) Canning
b) Freezing
c) Sterilization
d) Flash freezing
Answer: d) Flash freezing
What is the process of converting milk into condensed milk by removing water called?
a) Fermentation
b) Homogenization
c) Evaporation
d) Emulsification
Answer: c) Evaporation
Which of the following is a foodborne pathogen commonly associated with contaminated raw or undercooked meat?
a) Salmonella
b) E. coli
c) Listeria
d) Staphylococcus
Answer: b) E. coli
What is the process of converting complex proteins into simpler compounds through heat called?
a) Fermentation
b) Hydrolysis
c) Denaturation
d) Polymerization
Answer: c) Denaturation
Which of the following is a food additive used to thicken and stabilize the texture of food?
a) Flavor enhancer
b) Emulsifier
c) Thickener
d) Sweetener
Answer: c) Thickener
What is the process of converting milk into yogurt by adding live bacterial cultures called?
a) Fermentation
b) Homogenization
c) Coagulation
d) Culturing
Answer: d) Culturing
Which of the following is a method of food preservation that involves removing water from food through the application of heat and air movement?
a) Canning
b) Freezing
c) Dehydration
d) Pasteurization
Answer: c) Dehydration
What is the process of converting sugars into alcohol and carbon dioxide by yeast in the presence of oxygen called?
a) Fermentation
b) Hydrolysis
c) Oxidation
d) Polymerization
Answer: c) Oxidation
Which of the following is a foodborne pathogen commonly associated with contaminated raw or undercooked beef?
a) Salmonella
b) E. coli
c) Listeria
d) Staphylococcus
Answer: b) E. coli
What is the process of converting liquid oils into solid fats through the addition of fats and emulsifiers and partial hydrogenation called?
a) Fermentation
b) Homogenization
c) Hydrolysis
d) Interesterification
Answer: d) Interesterification
Which of the following is a method of food preservation that involves heating food to a high temperature for a short time and then rapidly cooling it?
a) Canning
b) Freezing
c) Sterilization
d) Pasteurization
Answer: d) Pasteurization
What is the process of converting milk into butter by separating the fat from the liquid portion called?
a) Fermentation
b) Homogenization
c) Churning
d) Emulsification
Answer: c) Churning
Which of the following is a food additive used to enhance the color of food?
a) Flavor enhancer
b) Emulsifier
c) Colorant
d) Sweetener
Answer: c) Colorant
What is the process of converting milk into cheese by coagulating the proteins and separating the curds from the whey called?
a) Fermentation
b) Homogenization
c) Coagulation
d) Emulsification
Answer: c) Coagulation