PLSC-190 FINAL + Exam 1 + Exam 2 –
Wong questions with correct answers
(29)
Produce Recalls can be either - correct answer ✔✔Voluntary Recall or Mandatory Recall
Who oversees the Food Safety Modernization Act - correct answer ✔✔Overseen by the Food and Drug
Administration
what is the goal of the Food Safety Modernization Act - correct answer ✔✔to Ensure the U.S. food
supply is safe by shifting the focus from responding to contamination to preventing it
what plant or type of plant has the highest outbreak likelyhood persentage - correct answer ✔✔1 = leafy
greens (25%)
2= sprouts (25%)
3= melons (cantaloupe and honeydew) (10%)
4=tomatoes (10%)
5= berries (6%)
what are top 3 bacterial pathogens - correct answer ✔✔E. Coli, Salmonella, and Listeria monocytogenes
how long does it take for bacteria to doplicate in optimum conditions - correct answer ✔✔time/bacteria
20min = 2
40min = 4
1 hour = 8
80min = 16
100min = 32
2 hours = 64
,4 hours = 4,096
6 hours = 262,144
8 hours = 16,777,216
what are some Produce Safety Challenges - correct answer ✔✔Many fruits and vegetables are
consumed raw - no "Kill Step"
Contamination is often random
Microbial contamination on produce is extremely difficult to remove once present
Bacteria can multiply on produce surfaces and in fruit wounds, provided the right conditions are present
what can the Irradiation of Foods help control/help with - correct answer ✔✔• Prevention of Foodborne
Illness
• Preservation
• Control of Insects
• Delay Sprouting and Ripening
• Sterilization
What are some contamination sources - correct answer ✔✔Animals
manure
irrigation water
people
equipmet
are birds a health risk for diseases - correct answer ✔✔no, most birds dont harbor any human
transmited diseases.
, What is recomended for Harvesting to decrease produce diterioration - correct answer ✔✔Harvest at
the coolest time of day
Move from field to cooler as quickly as possible
Avoid unnecessary cuts or bruises
Shade product in the field when possible
what is nesseccary before shipping, storing, or processing produce - correct answer ✔✔the Rapid
removal of field heat from freshly harvested commodities
what is the formula for Respiration - correct answer ✔✔sugars + O2 ➜ CO2 + H20 + ATP + heat
does Respiration increas of decrease with higher temperatures - correct answer ✔✔Increase
Temperature ➜ increase Respiration
what does High respiration do to produce - correct answer ✔✔hastens tissue senescence
Shortens shelf-life of produce
what produce needs to be cooled - correct answer ✔✔• Berries
• Leafy Greens
• Broccoli and Cauliflower
• Tomatoes
Some cooling is better then none - correct answer ✔✔look at slides
what are the Most Common Methods of Cooling - correct answer ✔✔• Room Cooling
• Forced Air Cooling
Wong questions with correct answers
(29)
Produce Recalls can be either - correct answer ✔✔Voluntary Recall or Mandatory Recall
Who oversees the Food Safety Modernization Act - correct answer ✔✔Overseen by the Food and Drug
Administration
what is the goal of the Food Safety Modernization Act - correct answer ✔✔to Ensure the U.S. food
supply is safe by shifting the focus from responding to contamination to preventing it
what plant or type of plant has the highest outbreak likelyhood persentage - correct answer ✔✔1 = leafy
greens (25%)
2= sprouts (25%)
3= melons (cantaloupe and honeydew) (10%)
4=tomatoes (10%)
5= berries (6%)
what are top 3 bacterial pathogens - correct answer ✔✔E. Coli, Salmonella, and Listeria monocytogenes
how long does it take for bacteria to doplicate in optimum conditions - correct answer ✔✔time/bacteria
20min = 2
40min = 4
1 hour = 8
80min = 16
100min = 32
2 hours = 64
,4 hours = 4,096
6 hours = 262,144
8 hours = 16,777,216
what are some Produce Safety Challenges - correct answer ✔✔Many fruits and vegetables are
consumed raw - no "Kill Step"
Contamination is often random
Microbial contamination on produce is extremely difficult to remove once present
Bacteria can multiply on produce surfaces and in fruit wounds, provided the right conditions are present
what can the Irradiation of Foods help control/help with - correct answer ✔✔• Prevention of Foodborne
Illness
• Preservation
• Control of Insects
• Delay Sprouting and Ripening
• Sterilization
What are some contamination sources - correct answer ✔✔Animals
manure
irrigation water
people
equipmet
are birds a health risk for diseases - correct answer ✔✔no, most birds dont harbor any human
transmited diseases.
, What is recomended for Harvesting to decrease produce diterioration - correct answer ✔✔Harvest at
the coolest time of day
Move from field to cooler as quickly as possible
Avoid unnecessary cuts or bruises
Shade product in the field when possible
what is nesseccary before shipping, storing, or processing produce - correct answer ✔✔the Rapid
removal of field heat from freshly harvested commodities
what is the formula for Respiration - correct answer ✔✔sugars + O2 ➜ CO2 + H20 + ATP + heat
does Respiration increas of decrease with higher temperatures - correct answer ✔✔Increase
Temperature ➜ increase Respiration
what does High respiration do to produce - correct answer ✔✔hastens tissue senescence
Shortens shelf-life of produce
what produce needs to be cooled - correct answer ✔✔• Berries
• Leafy Greens
• Broccoli and Cauliflower
• Tomatoes
Some cooling is better then none - correct answer ✔✔look at slides
what are the Most Common Methods of Cooling - correct answer ✔✔• Room Cooling
• Forced Air Cooling
