英语语法分析

Plenty of starch grains present in perisperm cells.

壁呈波浪形的外胚乳细胞富含淀粉粒。

Cells of perisperm contain mainly lipids, a small amount of protein granulars but no starch grain.

外胚乳细胞主要含许多脂类物质及少量蛋白质颗粒，不含淀粉。