Exam (elaborations)
Food Microbiology Final Exam Practice Questions and Answers (100% Pass)
- Course
- Institution
Food Microbiology Final Exam Practice Questions and Answers (100% Pass)
[Show more]
Content preview
©PREP4EXAMS @2024 [REAL EXAM DUMPS] Wednesday, July 17, 2024 1:27 AMFood Microbiology Final Exam Practice
Questions and Answers (100% Pass)
What are two naturally occurring anti-microbial defenses in milk? - ✔️✔️Lysozyme and
Lactoferrin
What causes the greatest amount (77%) of outbreaks associated with raw milk? -
✔️✔️Campylobacter
Does pasteurization kill all pathogens in milk? - ✔️✔️No, it brings them down to safe levels.
What is the first procedural step in designing a HACCP program? - ✔️✔️Develop a
Prerequisite Program
In the study conducted in Turkey over HACCP, what percent of employees lacked knowledge
about HACCP? - ✔️✔️83.5% ---> 84%
What are the three categories for food safety hazards? - ✔️✔️Biological, Physical, and
Chemical
Define what an antagonistic relation is? - ✔️✔️Microorganisms that inhibit others / reduce
their growth thanks to metabolites.
List three characteristics of an ideal antagonistic microorganism? - ✔️✔️1. Resistant to
pesticides
2. Non-pathogenic to host
3. Effective in low concentrations
Name three considerations needed to increase efficacy of antagonistic microorganisms? -
✔️✔️1. Use mixed cultures
2. Manipulate environment/chemical conditions
3. Combine with other hurdles.
Pet food labeling is regulated at what two levels? - ✔️✔️1. Federal
2. State
Page 1 of 26
, ©PREP4EXAMS @2024 [REAL EXAM DUMPS] Wednesday, July 17, 2024 1:27 AM
Is there a requirement that Pet Food products have pre-market approval by the FDA? -
✔️✔️No, there is no requirement
FDAs Food and Cosmetic Act require animal feed like human and pet food to be what three
things? - ✔️✔️1. Be pure and Wholesome
2. Produced under sanitary conditions
3. Be truthfully labeled.
What further research do you think should be done in the area of biofilms? - ✔️✔️Better
hurdles for prevention and mitigation of biofilm formation.
What are good daily practices to help prevent biofilm formation in a facility? (3) - ✔️✔️1.
Biofilm degrading enzymes
2. Sanitize all surfaces
3. Use interventions on a cycle basis
Could biofilm formation be significant in regards to other pathogens as well? - ✔️✔️Yes, many
pathogens form biofilms. Salmonella also forms a biofilm. Serotypes 1/2b and 4b especially.
Due to characteristics of bacteriophages used for biocontrol, it is expected that the following
groups are at risk if they get into contact with them:
A. Yeast and Fungi
B. Immunocompromised and healthy individuals
C. Rats, dogs, horses, and some other animals.
D. None of them - ✔️✔️D. None of them
The use of bacteriophages as an antimicrobial must be declared on the label of the product as
an additive.
Tru or False - ✔️✔️True
Name 2 desirable characteristics of bacteriophages or 2 reasons what will lead you to use
them in a food product and explain. - ✔️✔️1. Natural in the environment
2. They are target specific
Name 4 goals of the NARMS? - ✔️✔️1. To educate
2. Isolation
3. Research
4. Provide data to FDA
Page 2 of 26
, ©PREP4EXAMS @2024 [REAL EXAM DUMPS] Wednesday, July 17, 2024 1:27 AM
List 3 ways antimicrobials are miss used in feed animals. - ✔️✔️1. Treatment
2. Disease Prevention
3. Growth Promoters
What is the difference between Antibiotics and Antimicrobials? - ✔️✔️• Antimicrobials act
against a wide variety of organisms while antibiotics act only against bacteria.
• Antimicrobials include antibacterial, antifungal, antiviral, anti helminthes and anti protozoa.
• Unlike in most of the antimicrobials, resistance is a problem with antibiotics.
How much more is Raw Milk likely to cause food borne illness? - ✔️✔️150 times more likely
Mention the time and temperature for the HTST pasteurization? - ✔️✔️161°F for 15 sec
Under which regulation is the interstate sale of raw milk prohibited? - ✔️✔️21 CFR 1240.61 -
Code of Federal Regulations
What are the three types of rays that were approved for food irradiation and their penetration
power? - ✔️✔️1. X-ray: 15" of penetration
2. Gamma ray: 15" of penetration
3. Electronic beam: 3.5" of penetration
What are the main factors that help achieve the desired dose? - ✔️✔️1. Duration of exposure
2. Location of product to source
What are the purposes of food irradiation? (5) - ✔️✔️1. Preserve
2. Sterilize
3. Food-borne illness prevention
4. Insect Control
5. Delay of sprouting and ripening
What are three physiological conditions that bacterial cells acquire in stress? - ✔️✔️1.
Sublethal injury - bacteria can recover from injury
2. Variable but non-culturable (VBN) - bacteria are in low metabolic activity and not
dividing, but are alive.
3. Stress adaptation - enable bacteria to resist altered conditions.
Mention three genes involved in Salmonella stress response. - ✔️✔️1. rpoS - Acid tolerance
and starvation
2. rpoH - Heat shock condition
Page 3 of 26
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 OliviaWest. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73091 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now