BISC300 Chapter Notes - Chapter 7: Microbial Ecology, Mreb, Organism
8 May 2017
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Learning objectives: after completing this chapter, students are expected to: name the various phases of growth that occur in closed culture systems and describe what is occurring in each phase. Bacterial cell cycle (figures 7. 1 and 7. 3) and the role of ftz, mincde, mreb, and. Crescentin. describe the influence of various environmental factors (salt, ph, temperature, oxygen concentration,) on the growth of microorganisms. Particularly, know the biologic mechanisms for bacterial survival during certain environmental conditions (high temperature, low temperature, high ph, low ph, high salt, low salt, and oxygen level). What is water activity (aw) and how does it impact bacterial replication? categorize microorganisms according to the environmental factors that are conducive to optimal growth of the organism (complete the microbial growth table below as an example). This chapter describes the basic nature of microbial growth. Several methods for the measurement of microbial growth are described, as are different systems for studying microbial growth.
