440 lecture questions Flashcards

1
Q

What is an allergy

A

an abnormal response of the immune system to an otherwise harmless food

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2
Q

What substance in food tend to provoke an allergic reaction

A

proteins

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3
Q

What is a food allergy

A

immune system mistakenly believes that a food is harmful

The body releases antibodies and histamine to attack the food

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4
Q

What are some of the top allergies

list in answer

A

soy, egg, wheat, fish, peanuts, milk

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5
Q

What is the allergen threshold measured in

A

mg

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6
Q

What are 3 preventative techniques to avoid an allergic reaction

A
  • total avoidance of the offending food
  • properly labeled ingredients in food packages
  • clean and sanitize food contact surface and utensils completely before different tasks
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7
Q

What is a food intolerance

A

gastrointestinal tract does not produce proper enzymes to break down a food.

Can result in diarrhea or vomiting

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8
Q

What is an option to prevent food intolerance symptoms

A

take enzyme supplements

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9
Q

What are two types of structures that mold can form?

A

mycelium

conidiophore

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10
Q

Give 3 facts about mold mycelium

A

will bury roots into food source
vegetative state of mold
will use roots to absorb nutrients

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11
Q

What type of macronutrients do molds grow on

A

carbohydrates

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12
Q

Which organ does aflatoxin target

A

liver

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13
Q

which organ does ochratoxin target

A

kidney

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14
Q

which organ does fumonisins target

A

esophogus based on rate of esophogeal cancer.

horses and rabbits are susceptible.

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15
Q

What foods are at risk of containing ochratoxins

A

wheat, barley, rye

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16
Q

what foods are at risk of containing aflatoxins

A

peanuts

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17
Q

what foods are at risk of containing fumonisns

A

corn

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18
Q

what are the 3 types of toxigenic molds

A

penecillium
aspergillus
fusarium

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19
Q

what 2 steps can be taken to prevent mycotoxins

A

keep grains and nuts dry

packaging

20
Q

Name 4 ways to properly thaw frozen foods

A
  • in the refrigerator
  • as part of the cooking method
  • under running water (up to 70F in under 2 hours)
  • microwave
21
Q

what are 4 human carried pathogens

A

shigella
staphylococcus aureus
rota like virus
hepatitus A

22
Q

Name the 5 steps to cleaning food contact surfaces

A
remove debris
rinse
detergent
post rinse
sanitization
23
Q

what are the first 3 principles of HAACP

A
  • hazard analysis
  • determine critical control points
  • establish critical limits for critical control points
24
Q

what are the final 4 principles of HAACP

A

monitor CCP
corrective action
record keeping
verification

25
Q

What is the USDA responsible for inspection of

  • 3 food types
  • what of those food types
A

meat, poultry, and egg slaughtering and processing facilities

26
Q

What is the FDA responsible for inspection of

A
  • Any foods that is not meat, poultry, or egg

- prevent adulteration and misbranding

27
Q

what is the CDC responsible for

A

investigate food borne illnesses

annual summaries on outbreaks

28
Q

what is the difference between food safety and food defense

A

protection against unintentional contamination (food safety) vs intentional contamination (food defense)

29
Q

What are four regulatory levels that are responsible for food safety

A

international
federal
state
local

30
Q

What are the spore forming bacteria

A

clostridium botulinum
clostridium perfringens
bacillus cereus

31
Q

what are the (5) gram positive bacteria

A
clostridium botulinum
clostridium perfringens
bacillus cereus
staphylococcus aureus
listeria monocytogenes
32
Q

what mode of infection is clostridium perfringens

A

intoxication

33
Q

What is the difference between intoxication and toxicoinfection

A

intoxication - toxins produced in the ingested foods

toxicoinfection - foods contain pathogen and produce toxins in intestines

34
Q

which bacteria infect by intoxication

A

clostridium botulinum - neurotoxins
clostridium perfringens - enterotoxins
bacillus cereus (emetic syndrome) - emetic toxin
staphylococcus aureus - enterotoxins

35
Q

which bacteria infects by toxicoinfection

A

bacillus cereus

diarheal syndrome

36
Q

What are some symptoms of shigellosis

5 total

A

Bacillary dysentary

abdominal pains, fever, vomiting, bloody diarrhea, dehydration

37
Q

What are the gram positive bacteria

A
clostridium botulinum
clostridium perfringens
bacillus cereus
staphylococcus aureus
listeria monocytogenes
38
Q

what are the 2 life cycles of protozoa

A

feeding stage - grow and multiply in intestine

resting stage - excrete oocyte in feces

39
Q

What are 2 survival factors of oocytes

A

resists drying and disinfectants

40
Q

which of the two protozoa are humans the only host

A. cyclospora cayetanensis
B. cryptosporidium parvum

A

A cyclospora cayetanensis

41
Q

what are symptoms of cyclospora cayetanensis

A

explosive diarrhea, annorexia, bloating

42
Q

what are the symptoms of cryptosporidium parvum

A

severe watery diarrhea

43
Q

what types of foods are cryptosporidium parvum associated with

A

water, cider, produce

44
Q

what types of foods are cyclospora cayetanensis associated with

A

vegetables and berries

45
Q

what is anisakis

A

a fish parasitic worm

46
Q

What are the steps of hazard analysis (4)

A
  • flow diagram
  • hazard identification (potential pathogen)
  • risk estimation (severity of organism in the step)
  • preventative measures