Biology 1002B Lecture Notes - Photochemistry, Chlamydomonas, Transducin
27 Feb 2013
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4:32 pm: roles of light as used by life. Photosynthesis and carbon fixation: characteristics of chlamydomonas that make it a useful model system. A sexually active, light harvesting, carbon-reducing, hydrogen belching planimal function of basic components of chlamydomonas cells. Center of carbon fixation co2 --> organic. Harvests light (not to do is photosynthesis) Chlamydomonas are extremophiles relative usefulness of various biological characteristics as measures of complexity. Genome size: c value paradox, pcg - protein coding genes. Rise of multicellularity and eukaryote advantages to chlamydomonas in being phototactic. Respond to fluctuating light levels which is there primary source of energy reasons why chlamydomonas might move away from a light source. Destroy photosynthetic apparatus basic structure of rods and cones as photoreceptor cells. Rods and cones are photoreceptor cells: sit on retina. Located in discs which are in the eye major components involved in phototransduction and their role. Phototransduction: one photon changes from cis-retinal to trans-retinal.
