BIOL1012 Lecture Notes - Lecture 17: Cyanobacteria, Nepenthes, Polysaccharide
Document Summary
Biology: review section 10. 1, and the overview and review of c10. Read sections 31. 1, 37. 2-3, 41. 1-2, parts of 41. 3 and 41. 4. Organisms acquire carbon and other elements: all organisms* are built from carbon-based macro-molecules, autotrophs are organisms that require only an inorganic form of. C (e. g. co2, hco3: heterotrophic organisms require some form of organicc (e. g. c6h12o6) Organisms acquire energy: organic macromolecules are energetically unfavourable, and so their synthesis requires the input of energy. 12 co2 & 12 h2o higher s, lower h. C12h22o11 higher h, lower s: phototrophic organisms obtain energy from light, chemotrophic organisms obtain energy from chemicals. On earth most life is solar powered images from http://www. socalgreenrealestateblog. com/?p=1216. 10: photosynthetic eukaryotes and cyanobacteria absorb light in the visible spectrum, so much of the incident solar energy is unavailable to the biosphere (ch2o)n. Autotrophic capture of c and thus energy (ch2o)n (cid:39)g.
