Fecal cultures to isolate Clostridium difficile are plated on:
a. anaerobic blood agar.
b. LKV blood agar.
c. aerobic 5% sheep blood agar.
d. cycloserine cefoxitin fructose agar (CCFA).
D
Selective media are used to isolate certain anaerobes. Cultures for C. difficile are plated on CCFA, a special selective medium that helps inhibit normal gastrointestinal tract flora and allows the C. difficile to grow.
You might also like to view...
Refer to Figure 45.8 in your textbook. Which of the statements below about foraging behavior is not correct?
A. Levels of for mRNA are significantly higher in foragers compared to nurses. B. cGMP and cAMP, cyclic nucleotides, were used as activators of cGMP-dependent protein kinase. C. cGMP but not cAMP was capable of activating kinase in nurse bees who then showed a significant increase in foraging behavior. D. cAMP was capable of activating a kinase that increased nurse bee behavior in foragers. E. The increase in nurse bee foraging was directly related to the dose of cGMP.
The best definition of population density is:
a. the number of individuals of all species in a given area. b. the number of individuals of one species in a given area. c. the number of individuals in a given area at a given time. d. the number of individuals of all species in a given area at a given time. e. the number of individuals of one species in a given area at a given time.
Homeostasis is the ability of the organisms to maintain a stable internal environment.
a. true b. false
Would Clostridium botulinum be a good microorganism to use for biological warfare? Explain
What will be an ideal response?