2022 Food Science Exam

MULTIPLE CHOICE

1. Poor sanitation can cause ___________, which is a common problem that can lead to  ___________.
A. food weight to increase, more expensive products
B. food spoilage, off-odors and flavors
C. employee termination, labor shortages
D. None of the choices properly complete the sentence
ANS: B

2. What is the United States Department of Agriculture (USDA) agency that is responsible for ensuring the safety of the nation’s meat, poultry, and processed egg products?
A. Food Inspection Service
B. Food Safety Service
C. Meat, Poultry, and Egg Products Inspection Service
D. Food Safety Inspection Service
ANS: D

3. Which of the following represents the temperature “Danger Zone”?
A. 30°F to 130°F
B. 35°F to 135°F
C. 40°F to 140°F
D. 45°F to 145°F
ANS: C

4. The term “organic” is well-defined and regulated by  ___________.
A. USDA’s National Organic Program
B. FDA’s National Organic Program
C. The National Organic Food Program of the United States of America
D. Organic Foods of America
ANS: A

5. Vitamin C is also known as ___________.
A. acetic acid
B. ascorbic acid
C. citric acid
D. phosphoric acid
ANS: B

6. In the food industry, recipes are called ___________.
A. recipes
B. formulations
C. protocols
D. preparations
ANS: B
 
7. Which of the following can impact a human’s ability to detect flavors?
A. Age
B. Gender
C. Health
D. All of the above
ANS: D

8. In 2002, savory was officially recognized as the fifth taste by the scientific community. What is another term for savory?
A. Tasty
B. Beefy
C. Umami
D. Astringency
ANS: C

9. On August 1, 2022, the USDA announced that it will be declaring Salmonella an adulterant in which of the following products?
A. Raw pork products
B. Breaded and stuffed raw chicken products
C. All raw ground meat and poultry products
D. Raw poultry and turkey products
ANS: B

10. When bread is toasted, and browning occurs, this an example of which type of change?
A. Physical change
B. Phase change
C. Physical and phase change
D. Chemical change
ANS: D

11. In terms of addressing bioterrorism in the food industry, what are the “3 Ps” of protection?
A. Personnel, product, politics
B. Product, property, politics
C. Personnel, product, property
D. Personnel, property, processing
ANS: C

12. Which of the following refers to the stationary phase of microbial growth?
A. Period of adjustment after contamination occurs
B. Period of exponential growth
C. Environmental factors are limiting and growth slows
D. Death at an exponential rate
ANS: C
 
13. The food industry uses sublimation to ___________  and ___________ foods at the same time.
A. freeze, dry
B. freeze, liquefy
C. dry, liquefy
D. cook, irradiate
ANS: A
 
14. Structural changes in ingredients can be the indirect result of ___________.
A. heating
B. processing
C. storage
D. All of the above
ANS: D
 
15. What happens when gluten protein chains come into contact with water?
A. They do not react or move
B. Their shape changes by breaking into smaller chains or forming longer chains
C. Water acts as a protease and degrades gluten proteins
D. None of the above
ANS: D
  
16. What is the water activity of cookies, crackers, and bread crusts?
A. 0.50
B.  0.40
C.  0.30
D.  0.20
ANS: C 
 
17. What is lactose intolerance?
A. Overproduction of lactose in the small intestine
B. Overproduction of lactase in the small intestine
C. Inability to produce lactose
D. Inability to produce lactase
ANS: D

18. The flakiness and tenderness of a pastry or pie shell is dependent on ___________  and  ___________.
A. type of fat used, temperature at which fat is incorporated into flour
B. type of sugar used, temperature at which sugar is incorporated into flour
C. amount of air introduced, how much dissolved oxygen is present
D. cooking temperature, how quickly the product was cooled
ANS: A

19. Which of the following sweet alcohols is NOT used as a texturizer?
A. Glycerol
B. Mannitol
C. Sorbitol
D. Xylitol
ANS: A

20. Retrogradation occurs because ___________.
A. a gel wasn’t properly cooled
B. too much starch was added to a product
C. starch granules try to return to their pre-cooking structure
D. all of the above
ANS: C

21. What is a psychosomatic food illness?
A. All foodborne illnesses
B. Illness caused by the mind because of the sight of a foreign object or after watching another human get sick
C. Faking foodborne illness to avoid school or work
D. None of the above
ANS: B

22. Which pathogen caused a large outbreak in powdered infant formula in early 2022?
A. Salmonella Typhimurium
B. Escherichia coli O157:H7
C. Listeria monocytogenes
D. Cronobacter sakazakii
ANS: D

23. When carbohydrates are not present as an energy source, the body goes into ___________, which is a process of producing ___________.
A. ketosis, ketone bodies
B. glycolysis, glycogen
C. stress, cortisol
D. proteolysis, proteases
ANS: A

24. Which of the following is a lipid?
A. Shortening
B. Sterols
C. Cholesterols
D. All of the above
ANS: D
 
25. Which of the following describes a foodborne intoxication?
A. A disease-causing microorganism is ingested and causes illness
B. A chemical used in a food processing plant accidentally contaminates a food
C. A microorganism grows in a food, produces a toxin, and the toxin causes illness
D. The deliberate contamination of a food product with a toxic chemical
ANS: C

26. Which of the following is NOT an example of a globular protein?
A. Caseins in milk
B. Albumin in egg white
C. Whey in milk
D. All of these are globular proteins
ANS: D

27. Pork is lighter in color than beef because it contains less ___________.
A. blood
B. myoglobin
C. fat
D. glycogen
ANS: B

28. A food package is important for which of the following?
A. Protection of the product
B. Containing the product
C. Communicating information to the consumer
D. All of the above
ANS: D

29. When making popcorn, what causes the kernels to pop?
A. Heating degrades the proteins in the pericarp (shell) of the kernel, causing the kernel to pop
B. Heating breaks down starches in the kernel, causing them to expand, and the kernel to pop
C. Heating causes water and starch to combine in the kernel, causing the kernel to expand and pop
D. Heating causes water in the kernel to boil, resulting in steam, and the pressure caused by the steam pops the kernel
ANS: C

30. What is rennin?
A. Enzyme that breaks down fat during lipolysis
B. Enzyme that breaks down proteins in milk
C. Enzyme that breaks down lactose
D. Enzyme that breaks down maltose
ANS: B
  
31. Enzymatic browning is a chemical reaction that results in the production of brown pigments called ___________.
A. Acrylamides
B. Oxidases
C. Melanins
D. Bromelains
ANS: C

32. What are the fat-soluble vitamins?
A. A, D, E, K
B. A, C, E, K
C. C, D, E, K
D. A, C, D, E
ANS: A

33. Iodine is important for thyroxine production, which is produced by the thyroid. ___________ is one of the best sources of iodine.
A. Beef
B. Chicken
C. Pork
D. Seafood
ANS: D

34. Which of the following are NOT high in polyphenols?
A. White grapes
B. Red grapes
C. Purple grapes
D. Berries
ANS: A

35. Food allergies are mediated by ___________ antibodies to proteins.
A. IgA
B. IgE
C. IgG
D. IgM
ANS: B

36. Hygiene is important for people working in the food industry. People are known to harbor which of the following?
A. Streptococci
B. Staphylococci
C. Intestinal microorganisms
D. All of the above
ANS: D

37. What does CIP stand for in the food industry?
A. Cooking-in-Place
B. Cleaning-in-Place
C. Cooking-in-Progress
D. Cleaning-in-Progress
ANS: B

38. What does the acronym CRISPR stand for?
A. Clustered Regularly Interspaced Palindromic Repeats
B. Clustered Routinely Interspaced Palindromic Repeats
C. Check Regularly Inside Production Refrigerators
D. Check Routinely Inside Production Refrigerators
ANS: A

39. In terms of protein content and unsaturated fatty acids, insects provide nutritional benefits that are comparable to meat. However, edible insects also provide a source of ___________ and __________.
A. Vitamin  C, cellulose
B. Vitamin K, cellulose
C. Vitamin C, fiber
D. Vitamin K, fiber
ANS: D

40. Which of the following is NOT true regarding COVID-19 and our food supply?
A. Food packaging is an important source of SARS-CoV-2 (the virus that causes COVID-19) transmission, so all food packages should be sanitized
B. There is no evidence that COVID-19 can be transmitted by food
C. Coronaviruses, such as SARS-CoV-2, are easily killed using appropriate disinfectants
D. All of these are true statements
ANS: A

41. Which of the following is caused by a prion?
A. Salmonellosis
B. Rotavirus
C. Bovine spongiform encephalopathy
D. Hepatitis
ANS: C

42. Two Latin names are given to classify microbes. What is the genus and what is the species for Escherichia coli?
A. Genus = Escherichia, species = coli
B. Genus = coli, species = Escherichia
C. Genus = bacteria, species = Escherichia
D. Genus = Escherichia, species = bacteria
ANS: D

43. What is the Delaney Clause?
A. Bars the approval of any food known to cause illness in humans
B. Bars the approval of any food additive known to cause cancer in humans or animals
C. Bars the use of any sanitizer or disinfectant in the food industry if it is known to cause cancer in humans or animals
D. None of these describe the Delaney Clause
ANS: B
 
44. What does the term “Reduced Fat” mean when used as a food label nutrient claim?
A. No more than 10% of the fat of the comparable food
B. No more than 15% of the fat of the comparable food
C. No more than 20% of the fat of the comparable food
D. No more than 25% of the fat of the comparable food
ANS: D

45. Why can’t grapefruits and/or grapefruit juice be consumed with some medications?
A. Some medications alter the tastebuds and make grapefruits taste like metal
B. The ingredients in some medications combine with the flavonoid naringin in grapefruits to make a toxic compound
C. The flavonoid naringin in grapefruits can decrease the effectiveness of some medications
D. All of these are true
ANS: C

46. Which of the following best describes a sanitizer?
A. Agent that destroys/eliminates microbial life in all forms
B. Agent that kills vegetative bacteria and infectious fungi, but does not necessarily eliminate spores.
C. Agent that removes soil and debris from a surface
D. Agent that decreases, but does not necessarily eliminate, microorganisms to a level deemed safe for public health.
ANS: D

47. Caffeine consumption increases  the  excretion  of  .
A. Calcium
B. Calcium and magnesium
C. Zinc
D. Zinc and folic acid
ANS: B

48. What does the term aseptic mean?
A. Free of pathogens
B. Another term for sanitation
C. Heating food to 165oF
D. Another term for blanching
ANS: A

49. What does the term “Best If Used By” indicate on a food label?
A. Refers to product safety and indicates products are not safe after the date
B. Refers to product quality and safety, indicating the product will have poor quality and not be safe after the date
C. Refers only to product quality and indicates the product may still be fine to eat after the date
D. Tells the grocery store the last date that they can sell product before it must be destroyed
ANS: C

50. Which of the following types of required information must be found on the principal display panel of a food label?
A. Ingredients
B. Major food allergens
C. Company name and address
D. Name of food or statement of identity
ANS: D