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本部分与细胞结构、物质和能量代谢等专题关系密切,特别与生产和生活实践联系紧密。在复习本部分内容时,需要梳理知识,归类整理,联系人体的内环境与稳态知识,强化对试题所提供的新情境的理解,思考其中的调节过程,规范表达。一、植物生长素的发现和作用以胚芽鞘进行的各种实验,包括用单侧光刺激、用琼脂块、用云母片、切割胚芽鞘尖端、胚芽鞘横放、旋转等实验。这些着重分析生长素的极性运输、横向运输情况。明确生长素的促进细胞纵向伸长、促
This part of the cell structure, material and energy metabolism and other topics closely related, in particular, closely linked with the production and life practice. When reviewing the contents of this part, we need to sort out the knowledge, classify and organize, contact the body’s internal environment and steady-state knowledge, strengthen the understanding of the new situations provided by the test questions, think about the adjustment process and standardize the expression. First, the discovery and role of auxin A variety of experiments carried out with the coleoptile, including unilateral light stimulation, with agar blocks, with mica, cutting coleoptile tip, coracoid horizontal, rotation and other experiments. These focus on the analysis of auxin polar transport, horizontal transport. Clear auxin promote cell longitudinal elongation, promote