01:119:115 Lecture Notes - Lecture 9: Photosynthetic Pigment, Thylakoid, Radiant Energy
24 Dec 2015
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Document Summary
Photosynthesis- conversion of light energy into chemical bond energy. Chemical energy is in the form of simple sugars. Has enough energy to be useful but not too much to be harmful: when a molecule absorbs photon , electron will become energized now, electron may either . Jumps from lower orbital to higher orbital (has more energy. Won"t stay there very long: return back to ground state (lower orbital) Or absorbed light) (light that is of longer wavelength than the: either energy will dissipate as heat or, emission of fluorescence, energized electron leaves the atom. Eukaryotes: structure outermembrane, innermembrane, stroma, thylakoid (sac, space, membrane) It may be transmitted (goes through the matter) It might be reflected (re-emitted from the surface) It may be absorbed (happens during photosynthesis: photosynthetic pigments, pigment- substance that absorbs visible light, photosynthetic pigments- function is to capture (absorb) light for photosynthesis. Embedded in the thylakoid membranes: chlorophyll- main photosynthetic pigment [fig 10. 11]
