Why are cells so small?

Question 1

As cell size increases, surface area-to-volume ratio…

Answer 1

decreases

Question 2

What’s the difference between small cells to large cells?

Answer 2

Small cells have a greater surface area-to-volume ratio

Question 3

Why is a greater surface area-to-volume ratio is necessary for the plasma membrane?

Answer 3

To efficiently service all of the cell’s interior