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Questions and Answers
What is the primary use of agar in microbiology?
What is the primary use of agar in microbiology?
- As a pH buffer for bacterial cultures
- As a solidifying agent for culture media (correct)
- As a metabolic inhibitor for bacterial growth
- As a source of nutrients for bacterial growth
What is the temperature range at which agar liquefies?
What is the temperature range at which agar liquefies?
- 40°C to 50°C
- 60°C to 70°C
- 110°C to 120°C
- 85°C to 100°C (correct)
Which of the following algae is the preferred source of agar?
Which of the following algae is the preferred source of agar?
- Gelidium (correct)
- Pterocladia
- Gracilaria
- Any of the above
What is the purpose of controlling the gelation temperature of agar in bacteriological grade agar?
What is the purpose of controlling the gelation temperature of agar in bacteriological grade agar?
What type of bacteria is commonly grown using LB (Lysogeny Broth) culture media?
What type of bacteria is commonly grown using LB (Lysogeny Broth) culture media?
What is the primary characteristic of a synthetic medium?
What is the primary characteristic of a synthetic medium?
Which type of medium is used to isolate a specific bacterial species from a mixed flora?
Which type of medium is used to isolate a specific bacterial species from a mixed flora?
What is the purpose of adding components like yeast extract or casein hydrolysate to a complex medium?
What is the purpose of adding components like yeast extract or casein hydrolysate to a complex medium?
Which of the following media is an example of an enriched medium?
Which of the following media is an example of an enriched medium?
What is the specific requirement of Streptococcus for its proliferation?
What is the specific requirement of Streptococcus for its proliferation?
What is the primary purpose of adjusting the pH to 7.0 in preparing LB broth and LB agar?
What is the primary purpose of adjusting the pH to 7.0 in preparing LB broth and LB agar?
Which of the following bacteria can be grown on Chocolate agar?
Which of the following bacteria can be grown on Chocolate agar?
What is the main difference between LB broth and LB agar?
What is the main difference between LB broth and LB agar?
What type of medium is used to facilitate the growth of motile bacteria?
What type of medium is used to facilitate the growth of motile bacteria?
What is the characteristic of a simple medium, such as nutrient broth?
What is the characteristic of a simple medium, such as nutrient broth?
What is the purpose of adding meat extract to peptone water to create nutrient broth?
What is the purpose of adding meat extract to peptone water to create nutrient broth?
What is the classification of culture media based on the presence or absence of oxygen?
What is the classification of culture media based on the presence or absence of oxygen?
What is the primary purpose of adding 1% sugar to a microbial culture medium?
What is the primary purpose of adding 1% sugar to a microbial culture medium?
Which type of medium is used to grow anaerobic organisms?
Which type of medium is used to grow anaerobic organisms?
What is the characteristic of Salmonella typhi colonies on Wilson and Blair medium?
What is the characteristic of Salmonella typhi colonies on Wilson and Blair medium?
What is the purpose of using Durham's tube in a sugar medium?
What is the purpose of using Durham's tube in a sugar medium?
What is the definition of microbial culture?
What is the definition of microbial culture?
What is the purpose of demonstrating the properties of bacteria in culture?
What is the purpose of demonstrating the properties of bacteria in culture?
Which culture method is used to provide a uniform surface growth of the bacterium?
Which culture method is used to provide a uniform surface growth of the bacterium?
What is the purpose of the streak culture method?
What is the purpose of the streak culture method?
What is the purpose of the pour plate method?
What is the purpose of the pour plate method?
What is the purpose of the stab culture method?
What is the purpose of the stab culture method?
Which culture method is used for bacteriophage typing?
Which culture method is used for bacteriophage typing?
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