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呼吸作用是绿色植物十分重要的一项生理功能,不仅对绿色植物本身具有极其重要的意义,而且对生物圈中其他生物的生存以及维持生物圈中的碳-氧平衡都有极其重要的意义。人教版义务教育教科书生物学七年级“绿色植物的呼吸作用”的教学,从绿色植物对生物圈所起重要作用的角度,通过“种子在萌发过程中放出了什么气体”这一演示实验,让学生感知绿色植物呼吸作用会产生二氧化碳,从而认识呼吸作用在维持碳-氧平衡方面的重要意义,为培养学生爱护绿色植物的情感打下理性认识的基础,同时也体验了实验中蕴含的科学方法。
Respiration, a very important physiological function of green plants, is of great importance not only for green plants themselves but also for the survival of other organisms in the biosphere and the maintenance of carbon-oxygen balance in the biosphere. People's Education Edition compulsory education textbook biology seventh grade “green plants breathe ” teaching, from the green plants on the biosphere played an important role in the angle, through the “seed germination in the process of what gas released” Demonstration experiments to enable students to perceive the respiration of green plants produce carbon dioxide, so as to understand the importance of respiration in maintaining carbon-oxygen balance, lay a rational foundation for cultivating students' love for green plants, and also experience experiments implied Scientific method