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单词	photosystem
释义	photosystem /ˈfəʊtəʊˌsɪstəm / noun A biochemical mechanism in plants by which chlorophyll absorbs light energy for photosynthesis. There are two such mechanisms (photosystems I and II) involving different chlorophyll-protein complexes.In photosystem II, a different chlorophyll-protein complex absorbs light at the wavelength of 680 nm.... Both types of photosystems differ in size, pigment and protein composition, and charge. In higher plant chloroplasts, many pigment-binding proteins are inserted into the thylakoid membrane and organized into multisubunit complexes called photosystems.
随便看	mist propagation mist propagator mistrack mistracking mistral mistranslate mistranslation mistreat mistreater mistreatment mistress mistressdom mistressless mistressly Mistress of the Robes mistresspiece mistress-ship mistrial mistrust mistruster mistrustful mistrustfully mistrustfulness mistruth mistry

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。