20xx年醫(yī)學專題—stem-cells：干細胞(完整版)
【正文】 t started).,第一頁，共十六頁。,How do enzymes work?,The material that an enzyme works on is called a substrate.,Enzymes work like a lock and key – must have right enzyme for each substrate.,第九頁，共十六頁。ir243。Usually end with “ase”。,Enzyme Shape,The shape of each protein is determined by the sequence of amino acid
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