Electromagnetic radiation in a specific band of wave Chapter 10 Photosynthesis 1 of suns energy absorbed by plants Primary Producer 1 Photosynthetic Autotrophs Plants 2 Chemosynthetic Autotrophs Some bacteria deep Ocean need no sunlight for energy use chemical energy Light lengths ROYGBIV Visible Spectrum infra red Long wave length High Heat Low Energy Ultra violet short wave length low heat high energy Excitation Grand State Excited photon or light electrons jump to higher energy state e donate them to cytochromes Chlorophyll designed for light excitation several types of chlorophyll Chlorophyll A B etc A is MOST IMPORTANT Consist of magnesium porphyry ring long tail Nitrogen Bonds Photosynthesis depends ENTIRELY upon light in the visible portion of the spectrum Chlorophyll absorbs primarily in the blue violet and red regions Chloroplasts Carotenoids Phycobilins Photosynthetic Membranes Chloroplasts Thylakoid flattened sacs grana yellow and orange absorb green and yellow stroma area outside the thylakoid Stoma Stomata Gas exchange openings in leaf oxygen CO2 Photosystem I p 700 Photosystem II p 680
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