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ROP-Hazards-Quiz

Total questions: 13

Worksheet time: 7mins

Name
Class
Date
1.

Which foodborne illness pathogen does NOT produce spores?

a)

C. botulinum

b)

L. monocytogenes

c)

B. cereus

d)

C. perfringens

2.

Which bacteria does NOT cause foodborne illness by infection?

a)

L. monocytogenes

b)

Salmonella sp

c)

E. coli (STECs)

d)

C. perfringens

3.

(Check all that apply). A toxico-infection requires?

a)

a toxin-producing pathogen

b)

live toxin-producing cells, usually in large numbers

c)

dead pathogen cells

d)

spores

4.

This pathogen is considered the target for heat lethality, since it is the most heat resistant.

a)

E. coli (STECs)

b)

C. botulinum

c)

Salmonella

d)

C. perfringens

e)

Staphylococcus aureus

5.

This pathogen is considered the target for spore outgrowth during chilling, since it grows the fastest under these conditions.

a)

E. coli (STECs)

b)

C. botulinum

c)

Salmonella

d)

C. perfringens

e)

Staphylococcus aureus

6.

This pathogen is considered the target for growth under refrigeration.

a)

L. monocytogenes

b)

C. botulinum mesophiles

c)

Salmonella

d)

C. perfringens

e)

Staphylococcus aureus

7.

This pathogen is considered a target for growth under refrigeration in ROP, especially when the food item is fish or seafood.

a)

L. monocytogenes

b)

psychrotrophic C. botulinum

c)

Salmonella

d)

C. perfringens

e)

Staphylococcus aureus

8.

This pathogen is considered the target for growth under low water activity since it grows at the lowest Aw of all of the pathogens (Aw > 0.85).

a)

L. monocytogenes

b)

psychrotrophic C. botulinum

c)

Salmonella

d)

C. perfringens

e)

Staphylococcus aureus

9.

This pathogen is considered the target for growth under low pH since it grows at the lowest pH of all of the pathogens (pH ≥ 4.2).

a)

L. monocytogenes

b)

psychrotrophic C. botulinum

c)

Salmonella

d)

C. perfringens

e)

Staphylococcus aureus

10.

What is the growth/no growth pH level for all strains of C. botulinum? We often use this number to delineate high from low acid foods.

a)

4.2

b)

4.6

c)

5.0

d)

3.8

11.

When assessing foods for TCS/PHF status, Table A in Chapter 1 of the Food Code is used for?

a)

Cook chill and sous vide

b)

Vacuum packaging raw foods

c)

Vacuum packaging ready to eat foods

d)

Vacuum packaging cheese

12.

The temperature growth minima for psychrotrophic C. botulinum is ___ oF?

a)

41

b)

34

c)

38

d)

45

13.

The temperature growth minima for psychrotrophic L. monocytogenes is ___ oF?

a)

41

b)

34

c)

38

d)

45