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Frying - Quiz
Contributed by: Robbins
  • 1. What percentage of calories can come from fat in fried foods due to oil absorption?
A) Up to 50%
B) Up to 25%
C) Up to 75%
D) Up to 90%
  • 2. What percentage of a battered chicken or fish's final weight is absorbed frying oil?
A) 35%
B) 15%
C) 40%
D) 20%
  • 3. What percentage of a breaded chicken or fish's final weight is absorbed frying oil?
A) 25%
B) 30%
C) 15%
D) 20%
  • 4. What is the final weight percentage of frying oil in doughnuts?
A) 15-20%
B) 5-10%
C) 35-40%
D) 25-30%
  • 5. What is the final weight percentage of frying oil in potato chips?
A) 10-15%
B) 35-40%
C) 15-20%
D) 50-60%
  • 6. Which vitamins are unstable at high temperatures according to the text?
A) Vitamin C and vitamin D
B) Thiamin, riboflavin, and vitamin A
C) Vitamin B12 and vitamin K
D) Vitamin E and biotin
  • 7. Why is vitamin C lost from fried foods during frying?
A) It reacts directly with frying oil
B) It transforms into protein
C) It is water soluble and lost during water evaporation
D) It is destroyed by oxidation
  • 8. What percentage of vitamin A is destroyed during frying?
A) 10%
B) 14%
C) 24%
D) 50%
  • 9. What percentage of vitamin A is destroyed when food is boiled?
A) 5%
B) 30%
C) 14%
D) 24%
  • 10. What causes fiber to increase in fried foods?
A) The breakdown of carbohydrates
B) The formation of brown melanoidins in the crust
C) The concentration of minerals
D) The absorption of plant-based frying oils
  • 11. Why does the proportion of protein increase in fried foods?
A) Due to the concentrating effects of dehydration
B) Due to the addition of protein-rich oils
C) Due to the Maillard reaction absorbing nitrogen
D) Due to the formation of melanoidins
  • 12. Which amino acid decreases in proportion due to its role in the Maillard reaction?
A) Leucine
B) Glycine
C) Lysine
D) Valine
  • 13. What unwanted substances found in some fish are concentrated during frying due to dehydration?
A) Microscopic parasites
B) Heavy metals
C) Synthetic plastics
D) Pesticides
  • 14. What toxic compounds are produced during frying and evaporate with steam?
A) Esters
B) Aldehydes
C) Ketones
D) Alcohols
  • 15. Give an example of an aldehyde produced during frying mentioned in the text.
A) Butyraldehyde
B) Formaldehyde
C) Acetaldehyde
D) Benzaldehyde
  • 16. What part of the human body can be irritated if frying fumes are inhaled?
A) Stomach lining
B) Liver cells
C) Lung tissue
D) Skin cells
  • 17. How have fumes from frying been classified by the International Agency for Research on Cancer?
A) Probably carcinogenic to humans
B) Non-carcinogenic
C) Highly beneficial to health
D) Definitely carcinogenic to humans
  • 18. What three elements cause degradation of oil during frying?
A) Sugar, cold temperatures, and nitrogen
B) Acids, metals, and carbon dioxide
C) Water, high temperatures, and oxygen
D) Salt, light, and pressure
  • 19. What effect does hydrolysis have on an oil's smoke point?
A) It stabilizes it
B) It causes it to decrease
C) It causes it to increase
D) It eliminates it completely
  • 20. What causes the formation of volatile compounds that change flavor, quality, and texture?
A) Oxidation
B) Dehydration
C) Hydrogenation
D) Hydrolysis
  • 21. What is another name for rapeseed oil?
A) Linseed oil
B) Groundnut oil
C) Canola oil
D) Sunflower oil
  • 22. What ranking does rapeseed oil hold among used frying oils?
A) Second most used
B) Least used
C) Most used
D) Third most used
  • 23. In which regions is rapeseed oil especially used?
A) Northern Europe, Japan, Oceania, and Canada
B) West Africa and South America
C) Central Africa and the Middle East
D) Central America and the Caribbean
  • 24. Why is rapeseed oil prone to oxidation despite mostly comprising monounsaturated fat?
A) Its high water content
B) Its high linolenic acid content
C) Its low antioxidant content
D) Its low saturated fat content
  • 25. What is another name for peanut oil?
A) Canola oil
B) Olive oil
C) Rapeseed oil
D) Groundnut oil
  • 26. Where is peanut oil commonly used?
A) Canada
B) Japan
C) Northern Europe
D) West Africa
  • 27. How does peanut oil differ from rapeseed oil regarding linolenic acid?
A) It has double the amount
B) It is high in linolenic acid
C) It contains no fat at all
D) It is low in linolenic acid
  • 28. Why is olive oil stable at high temperatures?
A) Because it is chemically hydrogenated
B) Because it contains no water
C) Because of its high monounsaturated fat and antioxidant content
D) Because of its high linolenic acid content
  • 29. How much more slowly does olive oil degrade compared to sunflower oil?
A) Five times as slowly
B) Two times as slowly
C) Twenty times as slowly
D) Ten times as slowly
  • 30. How much more slowly does olive oil degrade compared to linseed oil?
A) Two times as slowly
B) Fifty times as slowly
C) Ten times as slowly
D) Five times as slowly
  • 31. What might be the cause of fried food consumption not being linked to increased mortality in Mediterranean countries?
A) The widespread use of olive oil
B) The high intake of vitamin C
C) The consumption of green tea
D) The avoidance of fish
  • 32. What is used with a small amount of oil in air frying?
A) A chip pan
B) A wok
C) A deep fryer
D) An air fryer
  • 33. Which equipment can be used in an industrial frying operation for deep frying?
A) A pressure fryer or vacuum fryer
B) A sauté pan
C) A shallow pan
D) An air fryer
  • 34. What is one method for preparing food for deep frying that adds color and crunch?
A) Tossing in a wok
B) Battering or breading
C) Boiling or steaming
D) Partial submerging
  • 35. Which of the following is a common deep-fried food?
A) Steamed rice
B) Boiled potatoes
C) Doughnuts
D) Scrambled eggs
  • 36. What is tempura an example of?
A) A stir-fried food
B) A deep-fried food
C) A sautéed food
D) An air-fried food
  • 37. What feature do sauté pans usually have to prevent food from exiting while tossing?
A) A flat bottom
B) A concave shape
C) Higher sides
D) A built-in thermometer
  • 38. What is another name for shallow frying?
A) Pan frying
B) Deep frying
C) Air frying
D) Pressure frying
  • 39. What is stir frying?
A) An Italian technique using a deep fryer
B) An industrial frying operation
C) A French technique using a shallow pan
D) A Chinese, high-heat technique using a wok
  • 40. What temperature can the base of the wok reach during stir frying?
A) 500 °C (932 °F)
B) 400 °C (752 °F)
C) 100 °C (212 °F)
D) 200 °C (392 °F)
  • 41. According to a 2021 meta-analysis, the highest category of fried food consumption is associated with what increase in all-cause mortality?
A) 3%
B) 52%
C) 28%
D) 37%
  • 42. What percentage increase in heart failure was linked to the highest intake of fried food in the 2021 study?
A) 37%
B) 28%
C) 3%
D) 2%
  • 43. What was the increased risk of major cardiovascular events for those who ate the most fried food in the 2021 study?
A) 2%
B) 28%
C) 3%
D) 52%
  • 44. What increased risk of coronary heart disease was associated with a high intake of fried food in 2021?
A) 22%
B) 2%
C) 37%
D) 3%
  • 45. What relation did the 2021 study conclude fried food consumption has with cardiovascular disease?
A) A linear dose-response relation
B) A protective relation
C) No relation
D) An inverse relation
  • 46. According to a 2023 meta-analysis, fried food consumption is linked to what increase in the risk of stomach cancer?
A) 3%
B) 52%
C) 37%
D) 28%
  • 47. Around what year is frying believed to have first appeared?
A) 2500 BC
B) 1000 BC
C) 1500 BC
D) 500 AD
  • 48. In which ancient civilization did frying first appear?
A) Zhou dynasty
B) Ancient Egypt
C) Ancient Rome
D) Ancient Greece
  • 49. What was one of the first foods deep fried in oil according to history?
A) Tiger nut cakes
B) Wheat bread
C) Corn tortillas
D) Potato chips
  • 50. Which chemical change takes place during the frying process?
A) Cellulose breakdown
B) Protein denaturation
C) Protein synthesis
D) Enzymatic browning
  • 51. Which of the following is another chemical change that occurs during frying?
A) Alcohol evaporation
B) Protein oxidation
C) Starch gelatinization
D) Lactic acid fermentation
  • 52. In whose tomb are depictions of workers putting small cakes in pots of oil found?
A) Pharaoh Ramses II
B) Vizier Ptahhotep
C) King Tutankhamun
D) Egyptian Vizier Rekhmire
  • 53. During which Chinese period were the Rites of Zhou and the Book of Rites written?
A) Han dynasty
B) Tang dynasty
C) Warring States period
D) Ming dynasty
  • 54. Who described pancake-like griddle cakes made with sesame seeds and fried in olive oil?
A) Apicius
B) Aristotle
C) Galen
D) Rekhmire
  • 55. In what century did the Greek cook Galen describe griddle cakes fried in olive oil?
A) 15th century BC
B) 2500 BC
C) 5th century AD
D) Late 2nd century AD
  • 56. Which Roman cookbook describes a Delian sweet?
A) Rekhmire's Tombs
B) Rites of Zhou
C) Apicius
D) Book of Rites
  • 57. What is a Delian sweet made from?
A) Sesame seed dough
B) Pickled meat paste
C) Hardened wheat paste
D) Tiger nut flour
  • 58. What is created in the food's cell walls when water vaporizes during frying?
A) Blisters
B) Cracks
C) Pores
D) Crystals
  • 59. What causes the food's starch content to soften?
A) Dehydration
B) Denaturation
C) Carbonation
D) Gelatinization
  • 60. Which type of fats are most prone to oxidation and polymerization?
A) Saturated fats
B) Polyunsaturated fats
C) Palmitic acid
D) Monounsaturated fats
  • 61. What do oxidation and polymerization of fats form that are absorbed by food?
A) Toxic compounds
B) Monounsaturated fats
C) Oleic acid
D) Vitamins
  • 62. According to the 2022 WHO review of 170 studies, what did polyunsaturated fat consumption reduce?
A) Palmitic acid levels
B) Vitamin E content
C) Overall mortality
D) Cancer risks
  • 63. Which oxidizes more quickly: unsaturated fats or saturated fats?
A) Saturated fats
B) They oxidize at the same rate
C) Neither oxidizes
D) Unsaturated fats
  • 64. What can oils with a high linolenic acid content result in when reused?
A) Fish-like smell
B) Sweet fragrance
C) Foaming
D) Explosion
  • 65. How does reusing oil affect the saturated and trans fat content in foods?
A) Increases them
B) Has no effect
C) Decreases them
D) Removes them completely
  • 66. How does reusing oil affect monounsaturated and polyunsaturated fats in foods?
A) Increases them
B) Doubles them
C) Has no effect
D) Reduces them
  • 67. How do foods fried in reused oil behave regarding oil absorption?
A) They absorb no oil
B) They absorb less
C) They repel oil
D) They absorb more
  • 68. Which type of oils are more prone to foaming?
A) Palm oil
B) Saturated fats
C) Blended oils
D) Sunflower oil
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