Biology 1002B Lecture Notes - Lecture 9: Pyruvic Acid, Glyceric Acid, Rubisco
11 Feb 2012
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Photosynthesis ii y photosynthesis fixates about 105 gt/year globally about half is terrestrial, half is oceanic. In one turn of the cycle, one rubp will react with one. Co2 giving pga is the carboxylation reaction of the. Measuring carbon fixation y sample of elysia is hooked up to a co2 analyzer, which detects. Co2 concentration above the solution of elysia measures gas exchange y co2 fixation rate is measured. Light intensity of about 160 in this case, called the light compensation point, balances gas exchange between the chloroplast and mitochondria rates become equal which gives a net co2 fixation of 0. If you want a plant to grow, it must be above the light compensation point because in order for it to grow, the y y rate of co2 fixation must exceed the rate of respiration. Needs lots of light, need more atp to regenerate c3.
