PSYC 2078 Chapter : Chapter7
Document Summary
Capture light energy in chemical energy (light reactions) Use the chemical energy to convert co2 into glucose (dark reactions)(calvin cycle) Photosynthetic reactions: a long series of steps, several basic questions, fate of specific atoms, two basic stage to photosythesis light dependent reactions (light reactions) light-independent reactions (dark reactions) Photosynthetic structures (eukaryotes): chloroplasts, two outer membranes, third membrane system (thylakoids, thylakoids light reaction occurs on thylakoids, atp synthases located on thylakoid membrane, figure 10. 4, granum, stack of thylakoid membranes, stroma, all reactions of photosynthesis occur in stroma. Dark reactions: calvin-benson cycle: takes place in the stroma, where does the energy come from to drive these reactions, light reactions, cyclic and non-cyclic photophosphorylation. Photosystem: a collection of several hundred pigment molecules in the thylakoid membrane along with proteins that are embedded in thylakoid membrane. Inputs and outputs: input, light, water, adp, nadp, output, o2, atp, nadph+h+ Input and outputs: inputs, light, adp, outputs, atp.
