“细胞的增殖、分化、癌变和衰老”同步检测

• 作 者: 曹涧
• 出 处: 新高考.物理化学生物
• 发表日期: 2006年12期
• 关键词: 坐标曲线 细胞癌变 细胞分化 细胞周期 同步检测 高考试题 衰老细胞 分裂间期 细胞增殖 生命过程

[命题特点]由于细胞增殖、细胞分化与生物的生殖和发育、遗传和变异等知识联系紧密,所以在高考中常考不衰。综观近年的高考试题,主要考查:细胞周期,细胞分裂方式和意义,有丝分裂过程中各时期DNA含量、染色体数目和染色单体数目变化规律,动植物细胞有丝分裂过程的异同;细胞分化的概念、特点和意义。考查的题型既有选择题也有简答题,简答题多用图像(细胞分裂图、坐标曲线图)形

[Proposition Features] Due to the close relationship between cell proliferation, cell differentiation, biological reproduction and development, genetics and variation, etc., they are often tested in the college entrance examination. Looking at the examination questions in recent years, we mainly examined: the cell cycle, cell division patterns and meanings, the changes of DNA content, chromosome number, and chromatid number in different stages of mitosis, the similarities and differences of mitosis in animals and plants, and the concept and characteristics of cell differentiation. And meaning. The questions examined are both multiple-choice questions and short-answer questions. Short answer questions use multiple images (cell division, coordinate curve)