Exam (elaborations)
Micro Test 3- Branson CFCC (final) Questions and Answers 100% solved
- Course
- Institution
Micro Test 3- Branson CFCC (final)
[Show more]
Content preview
Micro Test 3- Branson CFCC (final)sources of newborn initial microbiota - answer- Breathing
- Touching mother
- Breast feeding
a true pathogen - answer- infects healthy host
opportunistic pathogen - answerinfects immunocompromised host
Two types of reservoirs of disease - answer- Abiotic
- Biotic
Biotic: - answerAnimals (zoonotic)
Humans (dead end host)
Abiotic: - answerWater, air, food*
True or False:
Protaganism is the relationship our normal biota has with invading biota. - answerFalse normal biota are not easily removed by invading biota or microbes, it is actually hostile to other microbes.
True or False:
A bacteria with an I.D. (Infectious dose) of 10 is virulent than another with an I.D. of 10,000 - answerTrue: smaller number= high virulence factor
Infectious dose - answernumber of microbes required to cause an infection
5 stages of the progression of an infection - answer1. Portal of Entry
2. Adhesion
3. Overcoming Host Defenses
4. Causing Damage
5. Portal of Exit
Portal of Entry - answerMay be specific to the microbe
Adhesion virulence factors - answer♣ Glycalyx (capsule/slime layer) ♣ Fimbria
♣ Capsid spikes
♣ Anchor Proteins
Overcoming Host Defenses virulence factors - answer♣ Exoenzymes:
• Keratinasae
• Mucinase
• Collagenase
• Kinase (dissolves blood clots)
• Coagulase ( forms clots)
• Catalase ( destroys hydrogen peroxide) *basically a protein war
2 Types of toxins - answerexotoxins and endotoxins
Describe some enzymes or other adaptations that invaders use to survive or overcome host's defenses. - answer1. Keratinasae
2. Mucinase-digests the protective coating on mucous membranes
3. Collagenase
4. Kinase (dissolves blood clots)
5. Coagulase ( forms clots)
6. Catalase ( destroys hydrogen peroxide)
Contrast living and non-living reservoirs of pathogenic particles - answerliving:
Non-living:
Vertical transmission occurs between
A. father and son
B. G+ and G- bacterium
C. viroids
D. mother to child - answermother to child
True or False:
A pathogen MUST leave through the same portal it entered. - answerFalse
What structures do bacteria use to adhere to host tissues, and do they have an effect on virulence - answer♣ Glycalyx (capsule/slime layer)
♣ Fimbria
♣ Capsid spikes
♣ Anchor Proteins Yes
True or False:
Flies are examples of a biological vector - answerCan be!
*Biological: Microbe finishes some part of life cycle inside the host (vector)
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 jopewa. 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)
76669 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now
