BIOSC 1000 Lecture Notes - Lecture 15: Photophosphorylation, Thylakoid, Photosynthesis
17 Apr 2019
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Document Summary
Inner: highly permeable, semi permeable, mg2+ and cl , thylakoid, most of photosynthetic machinery is here, highly permeable, the membranes divide the chloroplast into three compartments. Grana: thylakoids are flattened sacs in stroma surrounded by thylakoid membranes, stacks of thylakoid sacs, connected by unstacked thylakoid membranes called stromal lamellae, all electron capture, energy transforming proteins are located in thylakoid membranes, pigments: light absorbing molecules. Excited electrons decay to ground sate: discrete packets (quanta) of energy (hv, dissipate energy as heat fluorescence, can transfer energy to nearby molecule, energy from an excited electron can excite an electron in an adjacent pigment or be transferred to an electron acceptor. Not making any oxygen: bc skipping psii all together, oxidative phosphorylation vs. photophosphorylation, the calvin cycle uses chemical energy from the light reactions (atp and nadph) to convert co2 into carbohydrates, calvin cycle: 3 stages.
