MICR 130 Lecture Notes - Lecture 1: Biochemical Oxygen Demand, Euprymna Scolopes, Organic Matter
Document Summary
There are few places on earth not colonized by microbes. Microbes able to use a variety of carbon and energy sources. Grow under different physical conditions (temp, ph, salinity, pressure, chemicals) Many important elements move from one chemical form to another and between different organisms. This movement and conversion is referred to as chemical cycles. Carbon, nitrogen, phosphorous, and sulfur have known cycles but we will focus on carbon and nitrogen as examples. Microbes live in a variety of habitats because of their abilities to. Use a variety of carbon and energy sources. In an organism can grow or use resources where others can"t, it has an advantage. Two differing organism living together in close association that is beneficial to one or both of them. Ruminants (sheep and cows) and the bacteria in the rumen (one of their stomachs) The microbes in termite guts break down cellulose in wood. Fungi living in close association with plant roots.