BIOL 102 Chapter Notes - Chapter 10: Intermembrane Space, Endergonic Reaction, Thylakoid
29 Nov 2015
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Must consume organic molecules from their environment to sustain life: autotroph. Make organic molecules from inorganic sources: photoautotroph, energy within light is captured and used to synthesize carbohydrates. Use light as a source of energy. Co2 + h2o + light energy c6h12o6 + o2: co2 is reduced, h2o is oxidized (provides h, energy from light drives this endergonic reaction and electrons) Chloroplast anatomy: outer and inner membrane, intermembrane space, thylakoid membrane contains pigment molecules, enclose thylakoid lumen, granum- stack of thylakoids, stroma- fluid filled region between thylakoid membrane and inner membrane. Take place in thylakoid membrane produce atp and nadph. Uses atp and nadph to incorporate co2 into organic molecules: photosynthetic pigments absorb some light energy and reflect others. Excited states unstable: can release energy: heat or light, can transfer energy (captured, cause reaction (photochemistry) Wavelengths that are absorbed by different pigments in the plant: actionspectrum. Rate of photosynthesis by a whole plant at specific wavelengths.
