“观察根尖分生组织细胞的有丝分裂”是高中生物学中一个非常重要的实验。通过实验的具体操作可以进一步提高学生的临时装片制作、染色技术以及显微镜观察等动手操作技能;通过实验现象的观察和分裂简图的绘制,可以加深对细胞周期各时期中染色体行为变化的理解;通过实验结果的分析和交流,可以提高学生分析问题和解决问题的能力。同时,该实验也是“观察细胞的减数分裂”和“低温诱导植物染色体数目的变化”等实验的基础。因此,有关有丝分 “Observing mitosis of apical meristematic cells” is a very important experiment in high school biology. Through the experimental operation can further improve the student’s temporary film production, staining techniques and microscope observation and other hands-on skills; through the observation of experimental phenomena and the sketch of the division, can deepen the understanding of the behavior of chromosomes in different stages of the cell cycle Through the analysis and exchange of experimental results, students’ ability to analyze and solve problems can be improved. At the same time, the experiment is also based on experiments such as “observation of cell meiosis” and “change of chromosome number in plants induced by low temperature”. Therefore, the relevant silk points