5. Why is the temperature of pasteurization at 60°C?

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Q: Briefly define culture medium.

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Q: 4. What is the importance of pH adjustment in culture media?

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Q: 1. TRUE or FALSE. An autoclave can be used to sterilize growth media?

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Q: Coulter Counter method in microbiology and its advantages and disadvantages?

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Q: What is the difference between common rich media and defined media?

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Q: Define Optimum Temperature.

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A: Control of microbial propagation is very significant in medical, pharmaceutical, food industries,…

Q: An obligate halophile requires higha. pH b. temperature c. salt d. pressure

A: There are many kinds of microbes that live in a variety of environment like salt, under high…

Q: 8- The following are methods of sterilization EXCEPT: O c) Sterilization by filters O b) Autoclaving…

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Q: The most versatile method of sterilizing heat-sensitive liquids isa. UV radiation b. exposure to…

A: Sterilization is a process of removing or killing or deactivating mostly all forms of life present,…

Q: Define selective media and explain when you would use it.

A: Media is any liquid or solid preparation made specifically for the growth, storage, or transport of…

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Q: 2. You use tubes to test aerotolerance of bacteria. From your samples you have 3 results: A.…

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Q: If you have a substance that you wish to sterilize (without destroying), and that substance is…

A: Introduction Any procedure that eliminates, eradicates, or renders inactive all life…

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A: Agar is used as a medium for culturing in laboratories.

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Q: Explain the Turbidity method in microbiology and its advantages and disadvantages?

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Q: Why is it necessary to let bacterial smears completely air dry before heat fixing?

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Q: 1. Can culture media be sterilized in the hot air sterilizer? Why or why not?

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Q: 1-The method of sterilizations we used in the tissue culture lab a. Fumigation b. Filtration C.…

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Q: There are 5 TSIA media A-E beginning from the left. Describe the reactions in tubes B, C, D, E only.

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Q: 1. What is one advantage of utilizing the pour plate technique over the streak plate technique ?

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Q: . Why not test water samples directly for Salmonella typhosa or other pathogens?

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Q: Which of the followings is not and electrophile? +NO2 CH2=CH2 Fe+3 BF3

A: Electrophiles are chemicals that have the ability to attract electrons. Usually, these molecules…