🎯 Microbial Growth
TARGETS
| 13. The survival and growth of any microorganism in a given environment depends on its metabolic characteristics. | Define cardinal temperature, maximum temperature, and minimum temperature for an organism. Define thermophilic, psychrophilic, psychrotolerant, mesophilic, halophilic, acidophilic, alkalophilic, etc., organisms. Name the four phases of bacterial batch culture growth, and describe what the cells are doing during each phase. |
Explain the concept of diauxic growth. Describe how very high (or low) temperatures, pH, or salt concentration inhibit growth (e.g., membrane stability, enzyme activity, proton motive force, etc.). Describe how oxygen affects the growth of aerobes, obligate anaerobes, and facultative anaerobes. Explain in general terms what a chemostat is and for what it is used. Given the starting concentration of a culture and the number of generations that occur, calculate the final concentration of the culture. |