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10 Cards in this Set

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plants, algae and several other groups of bacteria can harvest the radiant energy of the sunlight and then use it to power the synthesis of organic carbon compounds from CO2
Light reactions
capture the energy from light and convert it to chemical energy in the form of ATP
Light independent / Dark Reactions
capture the energy from light and use that energy to synthesize organic carbon compounds
carbon fixation
the processes used to convert carbon carbon dioxide into organic compounds
found in plants, algae and a group of bacteria called cyanobacteria. the photosynthetic processes of organisms that employ chlorophylls are oxygenic meaning they evolve oxygen
are found in 2 groups of bacteria : purple photosynthetic bacteria and green photosynthetic baceria
bacteriophylls- absorb wavelengths not absorbed by chorlophylls - therefore they can grow in habitats where other photosynthetic cannot
ANOXYGENIC - meaning they do not evolve oxygen
Accessory pigments
carotenoids and phycobilians
they increase the efficency of light capture by absorbing wavelengths of light NOT absorbed by choropyll
photosynthetic systems are located together in the photosystems - which specialize in capturing light
Reaction center pigments
reaction center pigments function as the electron donor in the photosynthetic process; in response to excitation by radient eergy, the molecule emits an electron which is then passed to an electron transport chain similiar to that used in respiration
antenna pigments
make up what is called the antenna complex, which acts as a funnel capturing energy of light and then transfering it to the reaction center pigment