What did experiments using porcelain filters prove?
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Q: (4) Can this disaccharide be digested by human beings? What will happen if we don't digest it? How…
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Q: Genetics Question 2
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Q: Genetics Question 8
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A:
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What did experiments using porcelain filters prove?
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- Why is bacterial culture useful to grow bacteria?What is the purpose of the detergent in the experiment?A microbiology student was given a mixed culture of two different gram positive bacteria species to grow into a culture medium using correct aseptic techniques. After two days,one gram positive bacterial species grew on the media and the growth appeared red on the surface of the medium. Tthe second gram positive bacterial species grew and the growth appeared yellow on the surface of the medium. What is the possible explanation for the differences in the color of the bacterial growth? A. the culture was contaminated B. the microbiologist put too much inoculum on the culture medium C. the medium was a selective medium D. the medium was differential
- Attached below is the study about the effects of handwashing and the effectiveness of soap against bacteria. What conclusions can be generated from this result? A C before washing hands 10 second hand wash B D hot water only rinse 30 second hand wash Figure 8: Agar plates with bacteria A) before washing hands B) after rinsing hands in hot water C) After washing hands with soap for 10 seconds and D) after washing hands for 30 seconds. Images show that the number of bacteria on the plate are not greatly reduced after a hot water rinse or 10 second handwash but bacterial levels are reduced after a proper hand wash for 30 seconds.Before the experiment was run, the apparatus was sterilized and then carefully sealed. Why was this an important thing to do?What could be the components of writing a good research proposal? Why do we conduct research in microbiology?