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2013年的生物高考题中有4道以种子萌发为知识背景的试题,而种子萌发的相关知识在现行的课标本教材中虽然有所涉及但比较散乱,没有体系性.因此笔者对种子萌发相关知识从萌发需要的外界条件和萌发时的生理生化变化两个方面进行整理,最后笔者对今年相关高考题进行解析,希望能为学生和教师的高考备考提供参考.一、影响种子萌发的外界条件种子萌发需要有适当的外界条件,包括适量的水分、足够
In 2013, there are 4 questions in the bio-examination with knowledge of seed germination, and the related knowledge of seed germination is scattered but not systematic in the current textbook textbook, so the author is related to the seed germination Knowledge from the germination needs of the external conditions and germination physiological and biochemical changes in two respects, and finally author of this year’s relevant college entrance examination analysis, hoping to provide reference for students and teachers to prepare for the college entrance examination test preparation .One, affect the germination of the external conditions Seed germination requires appropriate external conditions, including the right amount of water, enough