Plants Require The Conduction Of Photosynthesis Essay

1801 WordsSep 18, 20168 Pages
Plants require the conduction of photosynthesis in the ability to develop and grow. Photosynthesis occurs within the chloroplasts of cell. The process of photosynthesis requires the production of oxygen and the flow of electrons to conduct itself. Prior to the 1930’s experiment conducted by Robert Hill, it was unknown as to whether these things could occur without the presence of carbon dioxide. In his 1930’s experiments Robert Hill was the first to measure the oxygen that evolved by partially purified isolated chloroplasts (Pennazio 2008, pp.445) and discovered that electron flow and oxygen production continued without the presence of carbon dioxide as long as there is a presence of an electron acceptor (Deakin University 2016, pp.49). Similarly in this experiment the aim was to determine whether chloroplasts can continue to carry out oxygen production and electron flow in the absence of carbon dioxide. In contrast to the way that Hill’s experiment used a dye that lost colour when there was the gain of electrons, the dye used in this experiment DCPIP, which was used instead of NADP+, losses its blue colour when it is reduced from its oxidised state (Deakin University 2016, pp.50). Based on the findings by Robert Hill it is hypothesised that in the use of DCPIP as a coloured indicator for the conductance of photosynthetic reactivity of the chloroplasts will allow a continuance of the production of oxygen and electron flow, even in the absence of carbon dioxide, and that

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