Biology 1002B Lecture Notes - Lecture 9: Rubisco, Stoma, Endergonic Reaction
9 Sep 2013
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Oceanic 48. 5 gt: caused by plankton. However most of the organisms are ectoherms (external temperature dictates internal) So why isn"t there photosynthetic activity in the warm regions. Experiment dumps iron into the ocean to see what affects the have on phytoplankton. Energy from e- converts inorganic co2 organic: 5 g3p go back to make rubp, 1 g3p goes to make sugars ( 2 make glucose) Atp created in chloroplast stay there and reduce c02 glucose: used in endergonic process. Then glucose in mitochondria creates atp for energy: fuels cellular processes. Measure respiration by either: co2 production, o2 consumption. Measure photosynthesis by: co2 consumption, o2 production. Co2 fixation rate ( umol c/ chlorophyll/sec : rate at which inorganic co2 organic molecules. In the dark no light rxn no nadph fixation no photosynthesis: co2 fixation is negative, elysia i converting sugar into co2. When the light is turned on, fixation rate increases. Reaches light compensation point: co2 fixation rate= 0.
