Microbiology: Lab 06 with Complete Solutions
Protection of the Central Nervous System - Ans -1 - Meninges
2 - Cerebrospinal Fluid
3 - Brain
4 - Spinal Cord
What type of meningitis is the most dangerous?
Fungal meningitis
Autoimmune meningitis
Viral meningitis
Bacterial meningitis - Ans -Bacterial meningitis
"Bacterial meningitis has high morality rates, and must be promptly treated with
antibiotics."
How can the doctor rapidly determine if there are bacteria present in the cerebrospinal
fluid (CSF)? - Ans -Collect a few milliliters of CSF and send it for a Gram stain
What is the Gram Stain method? - Ans -Staining method used to differentiate
bacterial species into two groups
How long does it take to perform and analyze the Gram stain?
1 - 2 hours
1
Page
48 hours
, 24 hours
A few minutes - Ans -A few minutes
Hans: Do you know what two groups that i am talking about are named?
Gram-visible and Gram-invisible
Gram-positive and Gram-negative
Gram-cocci and Gram-rods
Gram-variable and Gram-constant - Ans -Gram-positive and Gram-negative
Hans: What is the outcome of a well-executed Gram stain? - Ans -Gram- positive
appear purple, and Gram-negative appear pink
Hans: Why is the bacterial cell well of such great importance?
Antibiotics can target the cell wall
All answers are correct
The cell wall is involved in inducing disease in the infected host
The cell wall is essential for bacterial viability - Ans -All answers are correct
Hans: Where do we find the Teichoic acids? - Ans -Gram-positive bacteria
Hans: Where are the lipopolysaccharides found? - Ans -The outer membrane of
Gram-negative bacteria
2
What is the primary stain used, that colors all bacteria purple? - Ans -Crystal violet
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Protection of the Central Nervous System - Ans -1 - Meninges
2 - Cerebrospinal Fluid
3 - Brain
4 - Spinal Cord
What type of meningitis is the most dangerous?
Fungal meningitis
Autoimmune meningitis
Viral meningitis
Bacterial meningitis - Ans -Bacterial meningitis
"Bacterial meningitis has high morality rates, and must be promptly treated with
antibiotics."
How can the doctor rapidly determine if there are bacteria present in the cerebrospinal
fluid (CSF)? - Ans -Collect a few milliliters of CSF and send it for a Gram stain
What is the Gram Stain method? - Ans -Staining method used to differentiate
bacterial species into two groups
How long does it take to perform and analyze the Gram stain?
1 - 2 hours
1
Page
48 hours
, 24 hours
A few minutes - Ans -A few minutes
Hans: Do you know what two groups that i am talking about are named?
Gram-visible and Gram-invisible
Gram-positive and Gram-negative
Gram-cocci and Gram-rods
Gram-variable and Gram-constant - Ans -Gram-positive and Gram-negative
Hans: What is the outcome of a well-executed Gram stain? - Ans -Gram- positive
appear purple, and Gram-negative appear pink
Hans: Why is the bacterial cell well of such great importance?
Antibiotics can target the cell wall
All answers are correct
The cell wall is involved in inducing disease in the infected host
The cell wall is essential for bacterial viability - Ans -All answers are correct
Hans: Where do we find the Teichoic acids? - Ans -Gram-positive bacteria
Hans: Where are the lipopolysaccharides found? - Ans -The outer membrane of
Gram-negative bacteria
2
What is the primary stain used, that colors all bacteria purple? - Ans -Crystal violet
Page
