Portage Microbiology Lab Exam 1
Questions and Correct Detailed Answers |
New Update 2025
What three elements are used in an autoclave to sterilize equipment? -
ANSWERS 1. Heat 2. Pressure 3. Steam
What type of incubator is pictured below? - ANSWERS The picture below is a
Fixed Incubator.
What is the minimum temperature an autoclave must be set at to achieve sterile
condition? - ANSWERS The minimum temperature for an autoclave to reach
sterile conditions is 125°C.
If you are working in a lab in which an autoclave is not available, and you are
pressed for time, which would you choose to best sterilize your equipment? Hot
steam or hot air? Explain why you chose your answer. - ANSWERS The best
way to sterilize equipment if an autoclave is not available, it should be hot steam
because it will sterilize the equipment in a matter of minutes while hot air could
take hours to reach the same effect.
At what temperature should you refrigerate bacterial samples? Explain why this is
beneficial. - ANSWERS 4°C. This temperature slows bacterial growth but does
not stop it, thereby preserving the sample.
Questions and Correct Detailed Answers |
New Update 2025
What three elements are used in an autoclave to sterilize equipment? -
ANSWERS 1. Heat 2. Pressure 3. Steam
What type of incubator is pictured below? - ANSWERS The picture below is a
Fixed Incubator.
What is the minimum temperature an autoclave must be set at to achieve sterile
condition? - ANSWERS The minimum temperature for an autoclave to reach
sterile conditions is 125°C.
If you are working in a lab in which an autoclave is not available, and you are
pressed for time, which would you choose to best sterilize your equipment? Hot
steam or hot air? Explain why you chose your answer. - ANSWERS The best
way to sterilize equipment if an autoclave is not available, it should be hot steam
because it will sterilize the equipment in a matter of minutes while hot air could
take hours to reach the same effect.
At what temperature should you refrigerate bacterial samples? Explain why this is
beneficial. - ANSWERS 4°C. This temperature slows bacterial growth but does
not stop it, thereby preserving the sample.