BIOL 2010 Midterm: BIOL 2010 2012_term_1_annotated
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Sc/biol 2010. 040 plant biology first term test 30 january 2012. [01] which one of the following is the best description/name for the absorbing pigment a in the graph (from your textbook): a linear tetrapyrrolle, a cyclic tetrapyrrolle, chlorophyll, xanthophyll, phycoerythrin, carotene, bilin, none of the above. Two of thepigments (b and c) have twp peaks, indicating that they are chlorophylls. Pigment a absorbs only in the blue-green, and is carotene: f. [03] which of the following atmospheric gases do not absorb significant amounts of solar radiation: h2o, a and b. The only gas which does not absorb significant amounts is o2: d. There are two major electron orbital transitions allowed in porphyrins containing a divalent magnesium ion complexed with the n-atoms of the cyclic tetrapyrolle. F is the most energetic absorption band of chlorophyll, b is the least energetic. C: orange (565-615 nm) d: yellow (545-595 nm) G: violet (375-425 nm) h: uv (250-300 nm)
