淮北一中2018-2019学年度第二学期高一年级开学考试生物答案.pdf

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淮北一中2 0 1 8 -2 0 1 9学年度第二学期高一年级开学考试生物参考答案一、选择题(每题只有一个最佳选项,每题2分,共2 5题,共计5 0分。)1 -1 0 CDBDB ACCBA1 1 -2 0 DBAAB CBCBD2 1 -2 5 CBBBD二、非选择题(共4题,共计5 0分。)2 6 .(除标注外,每空2分,共1 3分)(1)a(1分)b(2)载体和能量载体(3)b细胞质基质、线粒体(4)a为自由扩散,自由扩散时物质的运输速率只与物质的浓度差有关,与细胞的能量供应无关;如果b为协助扩散,则物质的运输速率受载体数量的限制,不受细胞能量供应的限制。2 7 .(每空2分,共1 2分)(1)B(2)加快(3)不变6 0条件下,t2时酶已失活,即使增加底物,反应底物总量也不会增加(4)蛋白质或RNA高效性、专一性2 8 .(每空3分,共1 5分)(1)丙酮酸(2)CO2和水;(3)酒精和CO2 ;(4)丙,葡萄糖在丙试管中彻底氧化分解,产生的ATP最多2 9 .(每空2分,共1 0分)(1)溶解色素(2)单层尼龙布(3)细、齐、直(4)叶绿素a胡萝卜素

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