1 Portage Microbiology Exam #4 / Strategies Review of Key Quizzes & Correct Answers.
Quiz____?
True or False: Growth media is best suited for distinguishing between two
similar species of bacteria - Answer✓✓ False. Growth media is designed to simply support (and not restrict) microbial growth
Quiz____?A researcher is asked to determine which of two vials contains e coli and which contains salmonella. Knowing both gram-negative while only one of them is capable of fermenting lactose, which type of media would be best suited (multiple choice) - Answer✓✓ Differential media distinguishes between two, often related, microbes
Quiz____?What are the requirements of a fastidious microbe? (short answer) - Answer✓✓ A fastidious microbe is an organism with complex growth requirements such that is absent it will not grow. Enriched medias thus contain these specific and essential nutrients required for the growth of a particular subset of microorganisms.
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2 Quiz____?
True or False: LB agar is classified as a selective, non-differential media -
Answer✓✓ False
Quiz____?What is agar used for in microbiology? (short answer) - Answer✓✓ Agar is used to create a solid, smooth surface on which microbes can grow
Quiz____?Alpha hemolysis (matching) - Answer✓✓ Incomplete hemolytic activity
Quiz____?Beta hemolysis (matching) - Answer✓✓ Complete hemolytic activity
Quiz____?Gamma hemolysis (matching) - Answer✓✓ No hemolytic activity
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