MICB 201 Study Guide - Final Guide: Acidophile, Sewage Treatment, Oxidative Phosphorylation

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22 Jun 2016
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By the end of this chapter, a student should be able to correctly answer multiple choice questions designed to diagnose whether they can: explain what is meant by growth for unicellular organisms. Population growth not growth of an individual: describe the growth phases exhibited by unicellular prokaryotic population growing in a closed batch culture system system like a food product. Lag phase: very slight increase in growth, it is a time where organisms are synthesizing any new and different proteins that are required for growth in the new environment. Exponential phase: when growth rate exceeds the death rate and it grows exponentially. Stationary phase: when growth rate equals death rate. Some essential nutrient is exhausted or toxic waste products build up and log growth ends. Closed systems have fixed amount of nutrients and waste products accumulate and no organisms are lost from the culture.

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