Food Science CDE Questions and Answers Already Passed
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Course
Food Science CDE
Institution
Food Science CDE
Food Science CDE Questions and
Answers Already Passed
What is the purpose of food irradiation?
A) Improve food appearance
B) Enhance flavor
C) Destroy bacteria and pests
D) Increase water content
Why are preservatives added to processed foods?
A) To extend shelf life and prevent spoil...
Food Science CDE Questions and
Answers Already Passed
What is the purpose of food irradiation?
A) Improve food appearance
B) Enhance flavor
✔✔C) Destroy bacteria and pests
D) Increase water content
Why are preservatives added to processed foods?
✔✔A) To extend shelf life and prevent spoilage
B) To increase calorie content
C) To improve texture
D) To reduce sodium levels
What happens when starch is heated in the presence of water?
✔✔A) Gelatinization occurs, thickening the mixture
B) Proteins are denatured
C) Fats are emulsified
1
,D) Sugars caramelize
Which pH range is considered acidic?
A) 7–14
✔✔B) 0–6.9
C) 8–10
D) 4.5–9
What is the main benefit of blanching vegetables before freezing?
✔✔A) It inactivates enzymes that cause spoilage.
B) It removes harmful bacteria completely.
C) It adds vitamins to the vegetables.
D) It improves their sweetness.
Which type of microorganism is most commonly responsible for foodborne illnesses?
✔✔A) Bacteria
B) Molds
C) Yeasts
2
,D) Viruses
What is the purpose of emulsifiers in food production?
A) Improve shelf life
✔✔B) Stabilize mixtures of oil and water
C) Enhance sweetness
D) Prevent browning
What is the Maillard reaction?
✔✔A) A chemical reaction between amino acids and reducing sugars during cooking
B) The breakdown of starch into sugars
C) The oxidation of fats causing spoilage
D) The absorption of water by proteins
Which of the following is a leavening agent commonly used in baking?
A) Salt
✔✔B) Baking soda
C) Olive oil
3
, D) Cornstarch
How does pasteurization help in food safety?
A) Adds flavor to milk
B) Removes all bacteria
✔✔C) Reduces harmful pathogens while maintaining quality
D) Increases fat content
What is the primary role of antioxidants in food?
✔✔A) Prevent oxidation and rancidity
B) Enhance flavor
C) Increase sweetness
D) Aid in digestion
Which of these foods is a good source of omega-3 fatty acids?
A) Apples
✔✔B) Salmon
C) Rice
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