anoxygenic photosynthesizers Correct Answers 1. purple
sulfur bacteria
(oxidize hydrogen sulfide to elemental sulfur & sulfuric acid)
2. purple non sulfur bacteria
(use only hydrogen)
3. green sulfur bacteria
(oxidize sulfide)
4. green non sulfure bacteria
(oxidize non-sulfide substrates)
Aquificae Correct Answers -gram (-)
-hyperthermophiles living in hot springs and oven vents
Archaea Correct Answers distinguished by:
-Membranes with branched isoprene chains & ether linkages to
phosphate head
, -Walls of surface layer proteins(some pseudopeptidoglycan)
-Genomes are much larger -Capable of methanogenesis
-Usually not in human microbiota
-Not directly associated with infectious diseases
Archaea membranes Correct Answers branched isoprene
chains & ether linkages to phosphate head
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