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Microbial Nutrition and Growth
Terms in this set (13)
An organism that uses light energy to form ATP and can grow only on organic carbon sources is called...?
What type of microbe must possess the enzyme superoxide dismutase?
What type of microorganism would you find living near hot springs?
What happens if a cell is placed in a hypertonic solution?
Water leaves the cell causing it to shrink
Which of the following is NOT a benefit to microbes living in a biofilm?
more choices for reproductive mates, thus more genetic diversity
Which of the following best describes the best way to collect a clinical specimen from the skin?
Brush sterile swab across skin, being careful not to contact other areas.
What must be done to a sample before the pour-plate technique is performed?
Colony-forming units must be separated by performing serial dilutions.
What is one disadvantage of complex media as compared with defined media?
The specific nutritional requirements of an organism cannot be determined with complex media
What type of medium would you use to culture an obligate anaerobe?
How would you culture an organism that grows best in 5% carbon dioxide?
What is binary fission?
A form of asexual reproduction in which the parent divides into two approximately equal parts
During which phase of microbial growth is DNA and protein synthesis maximal?
When a population of bacterial cells is cultured, how can the stationary phase be avoided?
By the use of a chemostat
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