The (SA:V) is related to cell division in that the bigger a cell gets the less surface area it has for itssize.
This is important if you are a cell that depends on through your cell wall to obtain oxygen water and food and get rid of carbon dioxide and waste materials.
As you get bigger your outside is unable to keep up with needs of the inside.
We can see this with agar cubes that have been soaked in NaOH solution.
The nutrients have diffused all the way to the centre of the smallest cube but the largest cube is mostly starved in the centre.
If you are a cell like the largest cube your SA:V has become so small that your surface area is not large enough to supply nutrients to your insides.
You have a number of choices.
You can:
An easy choice: Divide or die!

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