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| a metabolic process by which the energy of sunligh is captured and used to convert carbon dioxide and H2O into carbohydrate sugars and oxygen |
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| driven by light energy. This pathway converts light energy into chem. energy in the form of ATP & a reduced electron carrier (NADPH+H+) |
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| Light independent reactions |
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| Do not use light directly, but instead use ATP, NADPH+H+, & CO2 to produce sugars |
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| One form of the light-independent pathway that reduces CO2 |
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where a photon is absorbed by a molecule. the photon disappears but its energy remains.
--when a molecule absorbs a photon, it acquires its energy and so is raised from a ground state to an excited state. |
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| Electronmagnetic Spectrum |
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| encompasses the wide range of wavelengths (and energy levels) that photons can have. |
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| Absorbs photons in the blue and blue-green wavelengths and appear deep yellow |
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| Pigments in photosynthetic organism are arranged into the energy-absorbing antenna systems. In these systems, the pigments are packed together & are attached to thylakoid membrane proteins in such a way that the excitation energy from an absorbed photon can be passed along from one pigment molecule in the system to another |
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| converts the absorbed light energy into chemical energy |
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| uses light energy to oxidize water molecules, producing electrons, protons (H+), & O2 |
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| a chlorophyll. A molecule found in the reaction center for photosynthesis 2 which absorbs light maximally at 680mm |
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| when a pigment molecule enters an excited state, some opf the absorbed energy may be given off as heat, and the rest may be given off as light energy, or Fluoroscene |
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| uses light energy to reduce NADP+ to NADPH+H+ |
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| a chlorophyll, a molecule found in the reaction center for photosynthesis 2 which absorbs light maximally at 700mm |
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