英语语法分析

ATP was mainly located in chloroplastid and mitochondria. The protection to chloroplastid of cholesterol was more effective than that to mitochondria and cytosol.

亚细胞组分测定表明，ATP主要存在于叶绿体和线粒体中，胆固醇对低温下叶绿体的保护作用尤为明显。

With the increase of chromosome ploidy, the size of stomatal guard cells and the chloroplastid Numbers were increased, accompanied by the decrement of stomatal density.

染色体倍性提高，气孔保卫细胞的大小及其中叶绿粒数目增加，而气孔器密度减小。