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在植物生理实验中,在实验细胞生理一章的膠体部份时,“团聚作用”这一节时常做得不够理想,尤其在显微镜下很难看到清晰的团聚体,在这学期我们在做这一节实验时,我们是依据北京农大所交流的植物生理实验讲义这一节所介绍的用阿拉伯膠与白明膠作为材料来做,但是我们把这一节内容略加更动,经我们在实验室製作,成绩尚可,现在我们把这一节的做法写出来供在搞植物生理实验的同志作为参考,但这样做是否妥当,是否合乎道理,还希望同志们指正。阿拉伯膠在PH幅度很广的范围内,他的膠团是带负电荷的,而白明膠在PH4.7以下时
In plant physiology experiments, the section “Agglomeration” is often not ideal enough to experiment with the colloidal part of the Cell Physiology chapter, especially when it is hard to see clear aggregates under the microscope, and we are doing this semester An experiment, we are based on Beijing Nongda exchange of plant physiology experimental notes introduced in this section with acacia and gelatin as a material to do, but we have a little more movement in this section, we in the experiment Now we have made this section a guideline for reference by comrades engaged in plant physiology experiments. However, whether this is appropriate or not is reasonable and we hope that the comrades will correct me. Gum Arabic is negatively charged within a wide range of pH, while gelatin is below pH 4.7