Lecture Microbiology - Chapter 25: Environmental microbiology. This chapter presents the following content: Energy flow, biogeochemical cycles – water, biogeochemical cycles – carbon, biogeochemical cycles – nitrogen, nitrogen fixing bacteria,. | ENVIRONMENTAL MICROBIOLOGY CHAPTER 25 Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Energy Flow Producers Consumers Decomposers © 2012 John Wiley & Sons, Inc. All rights reserved. Biogeochemical Cycles – Water Precipitation/ Evaporation Transpiration Respiration Perspiration © 2012 John Wiley & Sons, Inc. All rights reserved. Biogeochemical Cycles – Carbon Respiration Combustion Deposits in rocks and reefs dissolve Photosynthesis © 2012 John Wiley & Sons, Inc. All rights reserved. Biogeochemical Cycles – Nitrogen Denitrification by microbes Microbial nitrogen fixation Industrial and natural fixation Animal wastes © 2012 John Wiley & Sons, Inc. All rights .
