Microbiology Lab Practical2 review

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What is a differential media?

Back

A differential media is a type of growth medium that allows for the differentiation of microorganisms based on their metabolic characteristics, often resulting in visible changes in the medium or the colonies.

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What is a selective media?

Back

A selective media is designed to allow the growth of specific types of microorganisms while inhibiting the growth of others.

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What is the purpose of Blood Agar plates?

Back

Blood Agar plates are used to culture bacteria and can differentiate between hemolytic and non-hemolytic organisms based on their ability to lyse red blood cells.

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Name a beta-hemolytic organism.

Back

Staphylococcus aureus is an example of a beta-hemolytic organism.

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What type of infections are targeted by antibiotics?

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Antibiotics specifically target bacterial infections.

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What does it mean if a media causes distinct color changes in colonies?

Back

It indicates that the media is differential and can help identify specific metabolic activities of the microorganisms.

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What is the significance of esculinase production in microbiology?

Back

Esculinase production is used to differentiate between certain bacterial species, such as Enterococcus durans and Streptococcus pneumoniae.

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What is the role of coagulase in microbiology?

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Coagulase is an enzyme that can cause blood plasma to clot, and it is used to differentiate Staphylococcus aureus from other Staphylococcus species.

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What is mannitol fermentation?

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Mannitol fermentation is a metabolic process where certain bacteria can ferment mannitol, producing acid and leading to color changes in the medium.

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What is the difference between bacterial and viral infections?

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Bacterial infections are caused by bacteria and can be treated with antibiotics, while viral infections are caused by viruses and require different treatment approaches.