BIOL 2051 Chapter : BIOL 2051 Lecture Outline Ch 19 Practice
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Archaeal traits and diversity: widest temperature range. Ph ______________________, high pressure, anaerobic: unique biochemistry. 4 phyla of archaea- (2 major, 2 minor) Require at least ______________________% nacl for growth (most require 12-23%) Common in salt lakes and ______________________ (ponds used to prepare solar salt by evaporation of sea water) To prevent water loss in hypertonic environment: pump inorganic ions (k+) ______________________ the cell, make or concentrate an organic solute in cell. Some extreme halophiles use light to produce energy: don"t have chlorophyll, have protein called ______________________ (red color) Light energy is used to pump protons to outside surface of cell membrane and generate a h+ or na+ gradient: atpase uses this gradient to form ______________________ Release ______________________ million tons of methane into atmosphere each year. ______________________ tract of animals human large instestine. Rumen 10-20% of total methane emitted to atmosphere originates in rumen. Thermophilic & acidophilic (ph ______________________: most strains have been isolated from self-heating coal refuse piles.
