As cell size increases, the . volume increases proportionally more than the surface area. b. volume and surface area decrease. c. surface area increases proportionally more than the volume. d. ratio of surface area to volume stays the same.

.a. volume increases proportionally more than the surface area.

Explanation:

As a cell size becomes enlarge this results in increase in volume and the membrane of the cell also increases. But the volume increases more rapidly then the surface area of the cell. As a result of this the amount of surface area required so as to pass the materials with respect to the unit volume of the cell also decreases.

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