单词 | quantasome |
释义 | quantasome/ˈkwɒntəsəʊm/Biology. Now historical noun Originally: any of numerous granular structures seen by electron microscopy in association with the grana of chloroplasts, hypothesized to be photosynthetic units. Later: a photoreceptor unit of a purple bacterium. Origin1960s. From quanta, plural of quantum + -some. The quantasome was believed to be the site of the photosynthetic unit, where ‘quantum conversion’ occurred. |
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