BIOL240 Lecture Notes - Lecture 2: Rumen, Carbon Fixation, Teichoic Acid
Document Summary
How do microorganisms make a living: in order for a microbial to grow, it has to be able to take in energy and carbon compound from the environment. Two main energy sources are chemical (chemotrophy) and light (phototrophy) Oxidation of inorganic chemicals provides energy for carbon fixation. Most are photoautotrophic: have to get carbon from carbon dioxide fixations, The domain archaea: limit for growth at high temperatures, also found in swamps and in the rumen of cows, these are organisms that can grow at a ph lower than 0. The domain eukarya: is dominated by the microbial species, the endo-symbotic theory, An archaea organism evolved a nuclear membrane before or after engulfing a bacterial organism, They had a symbiotic relationships and became reliable upon one another. Bacterial organisms in this relationship evolved to become the mitochondria. Different shapes of the cells: bacteria come in different shapes. Filamentous spirals wound tightly upon eachother: spirochete.
