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Gaokao Biology Practice Question

以黑藻为材料进行 “观察叶绿体” 活动。下列叙述正确的是

  1. A.基部成熟叶片是最佳观察材料
  2. B.叶绿体均匀分布于叶肉细胞中心
  3. C.叶绿体形态呈扁平的椭球形或球形
  4. D.不同条件下叶绿体的位置不变

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