“用高倍显微镜观察叶绿体”的实验,是高中生物第一册第二章“生命活动的基本单位一细胞”中的实验。其主要目的是观察叶绿体的形态和分布,笔者通过多次实践,对该实验的材料和过程进行了改进,改进后的实验效果非常理想。一、实验材料的改进教材选用的材料为藓类的叶,或者菠菜的叶。藓类生长在春夏温暖背光的环境里,叶绿体的含量非常少,冬天北方没有活体藓类,而此实验要在冬天做,所以藓类作为实验材料有它的局限性。用菠菜做实验材料,材料易得,但 The experiment of “observing the chloroplast with a high magnification microscope” is an experiment in the second chapter of the first volume of High School Biology “The basic unit of life activity”. Its main purpose is to observe the morphology and distribution of chloroplasts. The author has practiced several times to improve the materials and processes of the experiment. The experimental results after the improvement are very satisfactory. First, the improvement of experimental materials The materials used for the selection of the material are the leaves of the carp, or the leaves of the spinach. Apes grow in the spring and summer warm backlit environment, the content of chloroplasts is very small, in the winter there is no living apes, and this experiment is to be done in the winter, so the anthraquinone as a test material has its limitations. Using spinach as experimental material, materials are readily available but