6 3 Stages of Photosynthesis 1. Capturing energy from sunlight2. Using the energy to make ATP and to reduce the compound NADP+ to NADPH3. Using the ATP and NADPH to power the synthesis or organic molecules from CO2 in the air
7 Story Time- History of Photosynthesis HelmontPriestlyJan Ingen-HouszF.F. BlackmanC.B. van Niel
8 Pigments Photons- Short wavelength vs Long Wavelength Can cause photoelectric effect
9 Chlorophyll Absorption Spectra Chlorophyll bBoth can’t absorb nm…what color do you think this is?
10 Accessory PigmentsCaroteniods- ex Beta-carotenePhycobiloproteins
24 Photorespiration Releases CO2 Reduces the yield or photosynthesis As Temperature rises C3 respiration becomes less favorable
25 Coping with High Temperatures C4 pathway- Captures CO2 in one cell and the decarboxylation occurs in an adjacent cell.Corn, sugarcane, grasses.CAM pathway- stomata open during the night and close during the dayCacti, pineapples, and some other plants