Biology 2601A/B Lecture Notes - Lecture 3: Triose, Ribulose, Dikinase

• School: Western University
• Department: Biology
• Course: Biology 2601A/B
• Professor: Jennifer Taylor

Document Summary

Photosynthesis: most of the oxygen we breathe is because of photosynthesis, global carbon cycle: photosynthesis takes up so much co2 up from the air, most of that co2 is returned through plant or microbial (soil) respiration, the changes that we are making are fossil fuel emission (cid:224) they are not big changes compared to how much co2 the plants uptake, air sea gas exchange: photosynthesis, respiration, and decomposition results in. Two sets of reactions: light dependent (light reactions, uses water, produces oxygen, uses adp, nadp+ and produces atp, nadph, energy input from photons, can use o2 production to measure rate of photosynthesis, light independent (dark reactions, uses co2, produces sugars, uses atp, nadph and produces adp, nadp, energy input form light dependent reactions, can use net co2 consumption to measure rate of photosynthesis. Absorption spectrum of a leaf (or leaf pigment extract) Energy from harvested photons is transferred to the reaction centre.