CPSC 112 Lecture Notes - Lecture 6: Photosynthesis, C3 Carbon Fixation, Light-Independent Reactions
3 Oct 2018
School
Department
Course
Professor
Document Summary
Three steps: co2 enters leaf by diffusion, light energy is captured through a photochemical process (light-dependent, carbon assimilated through a biochemical process a (light-independent) Part one (1) - co2 enters leaf by diffusion. Fundamental tradeoff - co2 in, water out. Guard cells tend to open stomata during the day when there is lots of sunlight and close stomata at night when the sun is not present. They will also close stomata if the air is dry or hot, which minimizes water loss through evaporation. Empty air space inside of the leaf. Co2 goes through the stoma and into the chloroplast. Part two (2) - light energy is captured through a photochemical process (light-dependent) Part three (3) - carbon assimilated through a biochemical process (light-independent) Calvin cycle: calvin cycle explained - youtube. 1) rubisco fixes co2 into organic c compound (more stable form of energy) 2) organic c reduced using electrons (even more stable)
