Biology/Biology, cells, why division?
So if there are 3 cells, a 2x2x2 cube cell, a 4x4x4 cube cell, and an 8x8x8 cube cell, which of these cells would be best at bringing in and exporting materials for the cytoplasm that it has in it? Does it have to do with volume and surface area of each cube cell?
It is because of a math principle called the scale effect which state that as the size of the cell increases the surface are volume ratio decreases
Lets look your examples
Cube 2mm (Lets give it a unit number)
side = 2 Surface area= 2x2x 6= 24 mm square
Volume 2 cubed = 8 mm cubed SA-Vol ratio 3 to 1
Cube 4mm Surface area 4x4x6 =96 mm square ratio 0.6 to 1
Volume 4 cubed = 64 mm cubed
I won't bother to do 8
What is important here
All materials must move across the cell membrane. The larger the cell the greater the metabolic needs and the less the surface area for diffusion. The cell has to divide to meet the needs. This is why cells are so small