Any sample T&F questions and matching type questions for microbiology finals - cummulative? My finals is on Thursday night. Thank you

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Trinidad TremblayLv2

10 Feb 2019

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Nearly crying, she heads back to the dorm and checked her temperature - 101 F. Desperate, she wants to the student health center, where a nurse practitioner notices white spots on the back of Nadia's throat and on her tonsils. The divisional basketball game starts in 6 hours, but it only takes a few minutes for the nurse practitioner to perform a rapid streptococcal antigen test and determine that Nadia has streptococcal pharyngitis - strep throat. She will miss the big game.

Strep throat is caused by an encapsulated, gram-positive bacterium, Streptococcus pyogenes. The only good news is that by taking the prescribed penicillin, Nadia should be ready for her next big game - hopefully the quarterfinals.

How does the capsule of Streptococcus contribute to the bacterium's ability to cause disease?

What bacterial structures, besides the capsule, may be allowing Streptococcus to infect Nadia's throat?

Penicillin works by interrupting the formation of peptidoglycan. What bacterial structure contains peptidoglycan?

In a gram-positive organism, such as Streptococcus, is this structure typically thicker or thinner than it would be in a gram-negative bacterium?

College sophomore Nadia is a star point guard for her school's basketball team. She is excited about the divisional finals Friday night - she's even heard rumors that a professional scout will be in the stands. On Thursday morning, she wakes up with a sore throat. Her forehead doesn't feel warm, so she forces herself to attend her Thursday classes; but when she wakes up on Friday morning, her throat is noticeably worse. Still, she forces herself to attend Friday morning class but feels tired and much worse by noon. It is downright painful to swallow and she skips lunch. Nearly crying, she heads back to the dorm and checked her temperature - 101 F. Desperate, she wants to the student health center, where a nurse practitioner notices white spots on the back of Nadia's throat and on her tonsils. The divisional basketball game starts in 6 hours, but it only takes a few minutes for the nurse practitioner to perform a rapid streptococcal antigen test and determine that Nadia has streptococcal pharyngitis - strep throat. She will miss the big game. Strep throat is caused by an encapsulated, gram-positive bacterium, Streptococcus pyogenes. The only good news is that by taking the prescribed penicillin, Nadia should be ready for her next big game - hopefully the quarterfinals.

1.How does the capsule of Streptococcus contribute to the bacterium's ability to cause disease?

2.What bacterial structures, besides the capsule, may be allowing Streptococcus to infect Nadia's throat?

3.Penicillin works by interrupting the formation of peptidoglycan. What bacterial structure contains peptidoglycan?

4.In a gram-positive organism, such as Streptococcus, is this structure typically thicker or thinner than it would be in a gram-negative bacterium?

Please answer the following two questions with thourough, thoughtful answers that are about a paragraph in length. The following are for College Microbiology 1 (MICR 350) so relate the answers to microbiology. Please answer thoughtfully as I need good responses. Thank you.

1. PCR is a powerful technique, but a sample can be easily contaminated and the wrong DNA amplified â leading to the wrong diagnosis or sending an innocent person to prison. What might you do to minimize this possibility?

2. Why do cells use RNA in protein synthesis? Why not translate directly from DNA?