Photosynthesis that a complex of reactions consisting of an intermediate to cytochrome b (now a plastoquinone), another is from cytochrome f to a step in the carbohydrate-generating mechanisms. These are linked by plastoquinone, which does require energy to reduce cytochrome f for it is a sufficient reductant. Further experiments to prove that the oxygen developed during the photosynthesis of green plants came from water, were performed by Hill in 1937 and 1939. He showed that isolated chloroplasts give off oxygen in the presence of unnatural reducing agents like iron oxalate, ferricyanide or benzoquinone after exposure to light. The Hill reaction is
Australian Stem Cell Centre Australian Stem Cell Centre The Australian Stem Cell Centre is an Australian medical research and development centre which focuses on regenerative medicine through the use of stem cells. Founded in 2003, the Centre is the National Biotechnology Centre of Excellence and has received over $100 million in funding in recent years. It is Australia's premier stem cell research organisation. In June 2008, the Centre announced that it had begun working on induced pluripotent (iPS) cells (human embryonic stem cells, artificially created without human eggs or embryos). This was the first time in Australia that such research had been carried out,