BLG 230 Study Guide - Final Guide: Accessory Pigment, Euglenid, Chlorophyll

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28 Sep 2015

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This process may be a repeated to a third or fourth or further molecules. This process is called resonance energy transfer: the high-energy electron it self is transferred to a neighboring molecule (electron acceptor) that is part of the electron transport chain. Leaving the electron whole in the exited chlorophyll molecule. This possibility results in the oxidation of chlorophyll molecule and the reduction of an electron acceptor. During photosynthesis the 2nd and 3rd possibility are useful energy releasing events. Whereas the fluorescence process is not a productive reaction and photosynthesis becomes insufficient. Most pigments absorb certain wavelengths and transmit/reflect the wavelengths they don"t absorb. An action spectrum demonstrates the effectiveness of different wavelengths of light. Chlorophyll a occurs in all photosynthetic eukaryotes and in all cyanobacteria. Chlorophyll b occurs in plants and green algae and euglenoid algae. It"s an accessory pigment (pigment no directly involved in photosynthesis). Chlorophyll c occurs in brown algae and diatoms.

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