Exam (elaborations)
MICROBIOLOGY CHAPTER 14 QUESTION AND ANSWERS 2024
- Course
- Institution
MICROBIOLOGY CHAPTER 14
[Show more]
Content preview
MICROBIOLOGY CHAPTER 14pathology - answer Scientific Study of disease - concerned with etiology (cause) and
pathogenesis (development)& effects of disease
Name 3 types of symbiotic relationships - answer Mutualism, communalism, parasitism
mutualism - answer both organisms benefit from the relationship
commensalism - answer one organism benefits from relationship and the other neither
benefits or is harmed
parasitism - answer1 organism benefits and 1 is harmed Eg Salmonella enteric a
receives food/warmth from Lrg Int and Human host experiences gastroenteritis
name 2 examples of mutualism – answer tritonymph in termite intestine and vitamin
synthesizing bacteria in colon
name an example of commensalism - answer staphylococcus sp. on human skin
Define Disease - answerAny change from a state of heath. A disease may, but not
always, result from infection
normal microbiota - answerorganisms that colonize body surfaces w/o causing disease,
(ex Streptococcus in mouth)
transient microbiota - answerpresent for a few days/week , are easier to get rid of than
normal flora (eg microbs picked off door handle)
where are resident microbiota found - answeron skin, mm of digestive tract, upper
respiratory tract, and distal part of urethra and vagina
most resident microbiota are _______ - answercommensal
where are transient microbiota found - answeron skin, mm of digestive tract, upper
respiratory tract, and distal part of urethra and vagina
why cant transient microbiota persist in the body - answercompetition from other
microorganism, elimination by body's defenses cells, chemical or physical changes in
the body
when does normal microbiota develop - answerin the birthing process
, when is resident microbiota established - answerfirst months of life
opportunistic pathogens - answernormal microbiota or harmless microbes that can
cause disease under certain circumstances
name 3 conditions that provide opportunities for pathogens - answerimmune
suppression, reduction in microbial antagonism, intro of normal microbiota into unusual
site in the body
name an example of normal microbiota in unusual site - answerecoli in urethra causing
uti
name 4 portals of pathogen entry - answerskin, mm, placenta and parenteral route
parental route - answerdeposition directly into tissues under the skin or mm
name some ways pathogens enter by parental route - answerpunctures, cuts, deep
abrasions and surgery
adhesion - answerprocess by which microorganisms attach themselves to cells
is adhesion required to sucessfully est colonies within a host - answeryes
name adhesion factors - answerspecialized structures, adhesins and attachment
proteins
where are adhesion discs found - answersome protozoans
where are hooks and suckers found - answerin some helminthes aka worms
where are adhesins found - answerin bacteria
where are attachment proteins found - answerviruses
what are ligands - answersurface lipoproteins and glycoproteins that enable bacteria
and viruses to bind to complementary receptors on host cells
avirulent - answerharmless unable to make adhesins or attachment proteins
what is disease also referred to as - answermorbidity = any change from a state of good
health
asymptomatic infections - answerlack of symptoms but may still have signs of infection
etiology - answerstudy of cause of disease
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 julianah420. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $16.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
85169 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now