Biology 3222F/G Lecture Notes - Lecture 6: Light-Independent Reactions, Photosynthesis, Diatom
7 May 2019
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Document Summary
Food chain concept: attempt make simple model of extreme complexity of biological communities. Who eats what: energy transfer efficiency, understand how properties change w/ location, time. Food web: base on gut contents, still not all organisms, weight of arrow shows proportion of production following path. Biomass: total mass, organic matter in living things info on bio stored energy: quantify amount of carbon held in marine biota identify how much material available at each step of food chain. Carbon: currency among organisms eg. carb, lipid, protein, serves as proxy for ecosystem energy. Primary production: production of new biomass fixation of inorganic carbon into organic matter by primary producers, generation of chemical energy through production of organic matter. Autotrophs: produce organic molecules (food) from inorganic molecules. Calvin cycle: reduction of co2 to generate glucose/organic molecules. Gross primary production (gpp): amount co2 fixed by photosynthesis. Total rate of organic carbon production by autotrophs.
