BIOD171 PORTAGE LEARNING MODULE 5 EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED
Define the concept of universal precautions.
any and all samples, whether known or unknown, are to be treated as potentially hazardous
List at least 3 observations a researcher would be sure to note while asse...
Define the concept of universal precautions.
any and all samples, whether known or unknown, are to be treated as potentially
hazardous
List at least 3 observations a researcher would be sure to note while assessing
an unknown microbial sample.
1. Size and shape
2. Gram status
3. Any observable motility
While observing an unknown sample of limited amounts, a researcher must
determine the following observations: (1) the presence of motility and (2) its Gram
status using the same sample - the liquid sample cannot be divided. Which would
you determine first and why?
Motility first because you must determine motility before determining the gram status.
Motility requires a wet mount while gram staining requires heat fixing.
A facultative anaerobe is a microorganism capable of growth under what
conditions?
Aerobic (with oxygen) and anaerobic (without oxygen) conditions.
True or False: The Lancefield groups are used to subdivide antigenic groups of
alpha-hemolytic Streptococcus.
False. Lancefield groups are used to subdivide beta-hemolytic Strep.
The distinctions for Lancefield subgroupings lie in its (select all that apply):
A. Catalase activity
B. Carbohydrate composition of antigens
C. Hemolytic activity
D. All of the above
B. Carbohydrate composition of antigens
, Rheumatic fever displays _______ hemolytic activity and occurs when ______ is
left untreated.
A. Beta; Strep. Pharyngitis
B. Gamma; Strep. Septicemia
C. Beta; Rheumatic fever
D. Alpha; Strep. Pharyngitis
A: Beta, Strep, Pharyngitis
True or False: Under most circumstances, staphylococcus can be found in 80%
of human population where it remains non-sympathetic.
False
Define commensal bacteria.
is a bacterium that does not harm its host or gain anything from its host; it only gets
nutrients from it.
How can Staphylococcus be differentially tested?
They are capable of growth in the presence of bile salts term-10
Match the following symptoms with their respective diseases:1. Childhood skin
disease near mouth/nose
2. Infection of thin, transparent scleral tissue
3. Infection occurs at the time of birth
4. Pus-filled lesions on skin or hair
5. Ruptured pustules; treated with Penicillin
A. folliculitis
B. scalded-skin syndrome
C. impetigo
D. conjunctivitis
E. ophthalmia neonatorum
1. Childhood skin disease near mouth/nose- C
2. Infection of thin, transparent scleral tissue- D
3. Infection occurs at time of birth- E
4. Pus-filled lesions on skin or hair- A
5. Ruptured pustules; treated with Penicillin- B
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 LIXAN. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
