1) The 'centrsome' an organelle that lies close to the nucleus in animal cells are not present in plants. The 'organelle' is involved in the process of mitosis. 

2) The storage carbohydrate are different. Plants store it as starch while animals store it as glycogen. 

3) Plant cells have cell walls.

if you increase the cell size, the ratio between the surface area and volume decreases. 

The rate at which materials enter and leave a cell depends on the surface area.

however, the rate at which materials are used or produced depends on the volume of the cell.

A cell that becomes too large may not be able to take in essential materials or excrete waste substances quickly enough.

Times 1000 by each. 

1M---MM---micron---nm

How much larger the image is than the actual specimen is called the magification. 

Magnification is: Size of image/Size of specimen