Exam (elaborations)
MCB2010 Final Exam
- Course
- Institution
Exam of 10 pages for the course NUR 240 EXAM 2 Practice Questions. at NUR 240 EXAM 2 Practice Questions. (MCB2010 Final Exam)
[Show more]
Seller
Follow
modockochieng06
Content preview
MCB2010 Final Exam1st Requirement for Pathogenesis - ANS-Any portal of entry (natural, artificial, or
mucous membrane)
2nd Requirement for pathogenesis - ANS-a PREFERRED portal of entry (if pathogen
enters the body through another portal, disease may not develop)
3rd Requirement for pathogenesis - ANS-Number of invading pathogens (likelihood of
disease increases as the number of pathogens increase)
Anabolism (build up) - ANS-uses energy to synthesize macromolecules that make up
cell (ATP -> ADP+P)
Antibiotic that inhibit bacterial cell wall synthesis - ANS-- Penicillin (Narrow-spectrum
and affect Gram-positive bacteria more than Gram-negative cells), - Cephalosporin
- bacitracin
- vancomycin
Antibiotics - ANS-antimicrobial chemotherapeutic agent, which:-
- Is a natural product of microorganisms
- Inhibits the growth of other microorganisms
- Specifically targets Bacteria
- Affects bacteria in very small amounts (or doses)
- Is selectively toxic: kills germs but is safe to the host
Antibiotics that disrupt bacteria plasma membrane - ANS-Polymyxin-B
Antibiotics that interfere with protein synthesis - ANS-- Streptomycin
- Tetracycline
- Erythromycin
- Chloramphenicol
Antiseptics - ANS-Harmful on microbes, relatively safer on host (harmful); prolonged
contact & high concentration harmful; for external use only (topical application)
Autoclave Method: Boiling - ANS-Temperature: 100°C
Pressure (PSI): 0
Time: over 20 hours
, Autoclave Method: Maximum - ANS-Temperature: 121°C
Pressure (PSI): 15
Time: over 15 minutes
Autoclave Method: Minimum - ANS-Temperature: 110°C
Pressure (PSI): 5
Time: over 2 hrs. 30 minutes
Autoclaving - ANS-Method of sterilization using steam under pressure
Bacillus species - ANS-produce a few antibiotics; rod-shaped, Gram positive,
endospore-forming Bacteria
Boiling - ANS-kills 100% of Vegetative life forms but NOT dormant life forms
(endospores are resistant)
Boiling Temperature - ANS-100°C/212°F
Bovine Spongiform Encephalopathy (BSE) - ANS-caused by prions
Broad-Spectrum Antibiotics - ANS-affect BOTH Gram-positive AND Gram-negative
bacteria evenly
By understanding the conditions necessary for microbial growth, we can determine how
to: - ANS-1. Control the growth of microbes that cause disease or food spoilage
2. Encourage microbes that we wish to grow and study
Carl Weiger - ANS-added counterstain procedure to Gram stain to reveal bacteria in the
cells of infected tissue
Carriers - ANS-can transmit without any signs or symptoms
Catabolism (breakdown) - ANS-Releases energy by oxidation of molecules (ADP+P ->
ATP)
Cephalosparin - ANS-looks and works like penicillin, mostly against Gram-positive
bacteria. Its main advantage is that:
- It is not affected by the Penicillinase enzyme that destroys Penicillin.
- Compared to Penicillin, it has extended spectrum for Gram-negative bacteria
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 modockochieng06. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$11.17. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72841 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now