CP-FS Exam UPDATED Questions and
CORRECT Answers
Anisakis - CORRECT ANSWER✔✔- roundworm common in sushi; salmon, cod, squid,
cuttlefish, octopus; cooking/freezing inactivates; onset 1-2 weeks
Cyclospora cayetanensis - CORRECT ANSWER✔✔- parasite; assoc. with fresh produce;
rare in US, common in areas around the tropics; explosive watery diarrhea, loss of appetite,
bloating; onset 1 week
Cryptosporidium parvus - CORRECT ANSWER✔✔- parasite; large amounts of severe,
watery diarrhea; onset 1 week
Entamoeba hystolytica - CORRECT ANSWER✔✔- Amebiasis; not common in US; poor
hygienic practices, contaminated water on fruits and vegetables; range from no symptoms to
dysentery; may last for years; onset 2-4 weeks
Giardia lamblia - CORRECT ANSWER✔✔- parasite; contaminated food or water; not killed
by common chlorine mixtures; onset 1-2 weeks
Nematodes - CORRECT ANSWER✔✔- roundworms; undercooked meats, esp. wild game
such as bear and boar, domestic pigs; travel from bowel throughout body; die in organs,
causing inflammation; onset 2-28 days
Tapeworms - CORRECT ANSWER✔✔- Taenia solium (pork), Taenia saginata (beef);
undercooked pork or beef; hunger pains, severe wait loss, insomnia; onset 2 months to
develop to full size
thermophilic - CORRECT ANSWER✔✔- high temperatures, 113 to 252F
psychophilic - CORRECT ANSWER✔✔- capable of growth and reprod. at low temps 5-50F
mesaphilic - CORRECT ANSWER✔✔- moderate temps 68-113F
, psychotrophic - CORRECT ANSWER✔✔- grow well at refrigeration temps 30-50F
thermoduric - CORRECT ANSWER✔✔- heat resistant and can survive cooking temps as
well as pasteurization
lag phase - CORRECT ANSWER✔✔- initial growth, cell # remains constant prior to rapid
growth, longest of 4 phases; cells replicating various proteins and DNA to prep to grow (may
be sev days to hours depend on bact)
log phase - CORRECT ANSWER✔✔- steepest slope, double pop every 20-30 min.,
"logarithmic" phase
stationary phase - CORRECT ANSWER✔✔- plateau of growth curve, new cells at same rate
cells die, resources being used, state of equilibrium
death phase - CORRECT ANSWER✔✔- final phase, dead outnumber new cells, limited
resources, waste production, other changes to environment; colony starts over at first phase
pH - CORRECT ANSWER✔✔- 4.6-7.5
water activity - CORRECT ANSWER✔✔- the measure of the energy status of the water in a
system; microbial cells compete with solute molecules for free water molecules (molds better
competitors than bac, excluding staph aureus), 0.85; varies little with temp
spore formers - CORRECT ANSWER✔✔- B. cereus, C. bot, C. perfringens
toxin formers in food - CORRECT ANSWER✔✔- B cereus, C bot, Staph aureus
enterotoxin - CORRECT ANSWER✔✔- harmful substance prod. by staph aureus, b cereus,
ETEC, dangerous to GI tract
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller MGRADES. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
