Biology Question.(English)

Plant cell has its cell wall so that if the cell gain or lose too much water, the cell wall will maintain the shape of the cell to prevent cell from break. Plant cell also has chlorophyll so that photosynthesis can be carried out. Common cell is small for the maximum amount of diffusion rate can be carried out. Root hair cell has an extension of cell wall, so maximum of water can be taken from outside environment.

I can only give you an general idea, you will have to extend it yourself. Hope that can help you, where are you studying? Canada or New Zealand?

why not post it to Yahoo!answers, u can get ur answer really fast.

楼主也学生物啊，呵呵。。。

plant cell, it has cell wall, which may contain lignin, so it can make the plant stiff...

。。。。。。我还没学cell biology呢
建议你去yahoo问吧，记得去英文站点。

说一个方法在哪一每个细胞的结构帮助它实行它的功能。
c

选C.根毛细胞