MIC 301 Study Guide - Midterm Guide: Anabolism, Autotroph, Cyanobacteria
18 Sep 2016
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Not reproductive structure, no new cells are formed. 3 methods of prokaryotic cell division asexual production. Snapping division: in some g+ bacilli, only the inner portion of a cell wall is deposited across he dividing cell. The outer wall will break due to tension. Budding; outgrowth of the original cell receive a copy of the genetic material and enlarges. Acidic hot springs, deep-sea hydrothermal vents, thermophiles: temperature can"t be lower than 4 degrees. Halophiles: extremely saline habitats like the dead sea. Methanogens: obligate anaerobes that convert co2, h2 and organic acids into ch4, grows well from 98-110 degrees. Because their rrna sequences and growth characteristics they are similar to the earliest bacteria. Phototrophic bacteria: acquire the energy needed for anabolism by absorbing light with pigments. Some are also autotrophic produce organic compounds from carbon dioxide. G+ phototrophs that vary greatly in shape, size an method of reproduction. They are oxygenic (generate oxygen) during photosynthesis similar to algae.
