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BIOD 171 Module 5 Questions with Verified Solutions |Latest 2024/2025
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While visiting his grandparents, a 10-year-old child has green beans for dinner that were harvested from his grandparents' garden and canned the previous year. Severe illness sets in and the child is taken to the hospital. Botulism is suspected, but what form? Explain your answer. Food-borne botu...

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  • September 16, 2024
  • 19
  • 2024/2025
  • Exam (elaborations)
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BIOD 171 Module 5 Questions with Verified
Solutions.

While visiting his grandparents, a 10-year-old child has green beans for
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-


dinner that were harvested from his grandparents' garden and canned
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;-


the previous year. Severe illness sets in and the child is taken to the
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-


hospital. Botulism is suspected, but what form? Explain your answer.
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;-_;- _;-


Food-borne botulism. The child is too old (> 6 months) to be
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-


considered for infant botulism and wounds were not present. The green
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-



beans were likely improperly canned and under the low- acidic,
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;-


anaerobic conditions, bacterial growth was encouraged.
_;- _;- _;- _;- _;-




While observing an unknown sample of limited amounts, a researcher
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;-


must determine motility and Gram status using the same sample. What
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-



would you determine first and why?
_;- Motility would be determined
_;- _;- _;- _;- _;-_;- _;- _;- _;- _;- _;-


before gram status because motility is easily observed on a wet mount.
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-


The sample would need to be killed through heat fixing in order to
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-



determine gram status _;- _;-




Describe the symptoms and treatment regimen for someone infected
_;- _;- _;- _;- _;- _;- _;- _;- _;-


with Clostridium perfringens
_;- Symptoms include muscle necrosis, _;- _;-_;- _;- _;- _;- _;- _;-


fever, gas, and swelling. Treatment includes removal of infection
_;- _;- _;- _;- _;- _;- _;- _;- _;-



(sometimes amputation) followed by antibiotics _;- _;- _;- _;-




Identify the medical condition characterized by robust carbohydrate
_;- _;- _;- _;- _;- _;- _;- _;-


fermentation under anaerobic conditions, swelling of the infected areas
_;- _;- _;- _;- _;- _;- _;- _;- _;-


and fever
_;- gas gangrene _;-_;- _;- _;-

,A facultative anaerobe is a microorganism capable of growth under what
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-



conditions? It is capable of growth under both anaerobic and
_;-_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-


aerobic conditions _;-




As Streptococcus is catalase negative would it thrive or die in the
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-



presence of peroxides? Why? It would die. Because it is catalase
_;- _;- _;- _;-_;- _;- _;- _;- _;- _;- _;- _;- _;-


negative it wouldn't be able to breakdown peroxides.
_;- _;- _;- _;- _;- _;- _;-




Streptococcus is most often streaked onto: _;- _;- _;- _;- _;-




- Chocolate agar
_;- _;-




- EMB agar
_;- _;-




- Blood agar
_;- _;-




- Spirit Blue agar
_;- _;- _;- _;-_;- _;- Blood agar _;-




Strep is often cultured on Blood agar plates to determine its hemolytic
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-


properties, which aids in the classification (and differentiation) process.
_;- _;- _;- _;- _;- _;- _;- _;-




True or False. The Lancefield groups are used to subdivide antigenic
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-



groups of gamma-hemolytic Streptococcus.
_;- False
_;- _;- _;-_;- _;-




The Lancefield groupings are used to subdivide beta-hemolytic Strep
_;- _;- _;- _;- _;- _;- _;- _;-




Greater than 90% of all human streptococcal infections belong to:
_;- _;- _;- _;- _;- _;- _;- _;- _;-

, - Group C
_;- _;-




- Group B
_;- _;-




- Group A
_;- _;-




- Group D
_;- _;- _;-_;- _;- Group A _;-




Group A is the causative agent behind> 90% of all strep infections
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-




Rheumatic fever displays ______ hemolytic activity and occurs when
_;- _;- _;- _;- _;- _;- _;- _;- _;-


_______ is left untreated.
_;- _;- _;-




Beta; Rheumatic fever
_;- _;-




Alpha; Strep. Pharyngitis
_;- _;-




Beta; Strep. Pharyngitis
_;- _;-




Gamma; Strep. Septicemia _;- _;- _;-_;- _;- Beta; Strep. Pharyngitis
_;- _;-




Strep throat (also known as strep. Pharyngitis) can lead to Rheumatic
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-


fever if left untreated and displays beta-hemolytic activity
_;- _;- _;- _;- _;- _;- _;-




True or False. Under most circumstances, staphylococcus can be found in
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;- _;-


~80% of human population where it remains non-symptomatic.
_;- _;- False
_;- _;- _;- _;- _;- _;-_;- _;-




Staphylococcus is only found in (symptomatic) -30% of all human
_;- _;- _;- _;- _;- _;- _;- _;- _;- _;-


populations

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