The major factor limiting cell size is:
A
presence of membranous organelles
B
ratio of surface area to volume
C
concentration of water in cytoplasm
D
composition of the plasma membrane
Correct option is C. ratio of surface area to volume
The maximum limit to which a cell can grow in size is determined by the ratio of surface area to volume, because the exchange of substances between the cytoplasm of the cell and exterior takes place through the cell membrane that forms the surface of the cell. The measure of cell surface to cytoplasm exists as two dimensional to three dimensional, that is area to volume
After the cytoplasm has reached a certain volume, the cell surface cannot bring about the exchange of substances at par with the increase in volume
Thus, the cell takes the decision to divide so as to maintain an optimum surface area to volume ratio
So, the correct answer is 'ratio of surface area to volume'