Microbiology: Lab 06 Final Exam Questions With Complete Solutions.

Microbiology: Lab 06 Final Exam Questions With Complete Solutions. Protection of the Central Nervous System - CORRECT ANSWER 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 - CORRECT ANSWER 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)? - CORRECT ANSWER Collect a few milliliters of CSF and send it for a Gram stain What is the Gram Stain method? - CORRECT ANSWER 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 48 hours 24 hours A few minutes - CORRECT ANSWER 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 - CORRECT ANSWER Gram-positive and Gram-negative Hans: What is the outcome of a well-executed Gram stain? - CORRECT ANSWER 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 - CORRECT ANSWER All answers are correct Hans: Where do we find the Teichoic acids? - CORRECT ANSWER Gram-positive bacteria Hans: Where are the lipopolysaccharides found? - CORRECT ANSWER The outer membrane of Gram-negative bacteria What is the primary stain used, that colors all bacteria purple? - CORRECT ANSWER Crystal violet For how long will you drench the bacterial smear in crystal violet? - CORRECT ANSWER 1 Minute (60 seconds)