LIFESCI 7B Chapter Notes - Chapter 5: Electron Transport Chain, Light-Independent Reactions, Rubisco
29 Nov 2017
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Objectives: connect redox reactions to energy transformations that occur throughout photosynthesis, explain how the calvin cycle transforms carbon dioxide into sugar and where the. Photosynthesis equation: co2 + h2o => c6h12o6 + o2, h2o is oxidised to o2, co2 is reduced to c6h12o6. Structure of chloroplasts: chloroplasts have an outer and inner membrane and stroma, contains grana stacks which are made from folded thylakoid membrane (with the lumen in the inside, electron transport chain happens on the thylakoid membrane. Storage in plants: carbohydrate is stored as starch, starch isn"t water soluble, therefore will not affect the osmolarity of the cells. In plant cells: there are different outcomes for light absorption of chlorophyll depending on the environment. In a solution in a lab, chlorophyll will absorb light and excite one of its electrons: the absorbed light energy is then released as heat (mainly) and light energy, the electron then returns to ground state.
