Biology 1002B Lecture Notes - Lecture 9: Carbon Fixation, P700, Competitive Inhibition

• School: Western University
• Department: Biology
• Course: Biology 1002B
• Professor: Tom Haffie

Document Summary

Light energy is converted into usable energy by photosynthesis to form glucose by using co2 and releasing oxygen. The cells need energy, so in cellular respiration will use the glucose to generate atp and uses o2 and release co2. Measuring carbon fixation: co2 analyzer, (does co2 go up or down, lights, too see if the rate will change with lights, co2 fixation rate = micromole carbon/cell (or it could be per chlorophyll)/min. In the dark, the co2 fixation rate is negative, below zero, it represents the mitochondria respiration, co2 is released. Because mitochondria releases co2 it does not consume it, thus it below zero. Inhibition with oxygen: other factors that limits the rate of carbon fixation: Limited co2, because there might not be enough co2, if gives the system more. Co2 then the rate might increase: homework, sketch the curves at home (find the curves in the power point)