A biology book said that the structure of a cell is closely related to its function. Using both plant and animal examples, comment on the validity of this statement

As in Plant; Meristematic cells have high no of mitochondria as they have to duvide continuously!

and in animal as for example, take a liver cell, they have high number of smooth endoplamic reticulum as they have to detoxify toxic materials!

for more info; comment!