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BIOD171 PORTAGE LEARNING MODULE 5 EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED $7.99   Add to cart

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BIOD171 PORTAGE LEARNING MODULE 5 EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED

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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...

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  • June 6, 2024
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  • 2023/2024
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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 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

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