BIOL241 Study Guide - Midterm Guide: Enterobacteria Phage T4, Lambda Phage, Nitrogen Fixation
16 Mar 2013
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Document Summary
Microbial ecology study of interrelationships between microorganisms and their environments. Ecosystem community of organism and their natural environment. Guild a grouping of metabolic organisms related to each other who share the same resources. Community sets of population that interact with each other. Understanding biodiversity of microorganisms in nature and interactions in communities. Measurement of microbial activities in nature and monitoring of effects on ecosystem. Primary production of organic matter (phototrophic, chemolithotrophic activity) Live in common habitats suited to higher organisms, also in extreme environments. Necessities for growth include available resources suitable for physiochemical conditions. Niche: functional role of an organism with an ecosystem. Prime niche: where everything is optimal for an organism. Microenvironment: where a microorganism lives, metabolizes within its habitat. Microbial life in nature often differs from microbial life in lab culture. Entry of nutrients into an ecosystem is often intermittent. Distribution of resources in nature is often non-uniform (i) (ii) (iii) competition for resources is likely.
