Question

The surface area to volume ratio increases as the cell size

• A. Unaltered
• B. Slightly increases
• C. Decreases
• D. Increase in many layers

Answer 1

Answer: (C)

Decreases

When the cell size increases, the volume increases more than surface area because the volume increases in cubes while surface area increases in squares. Hence, both volume and surface area increases at different rates. And here the surface area to volume ratio decreases as the volume is more than surface area.

• When the cell size decreases, the volume decreases at unequal rates with respect to surface area. This leads to an increase of the surface area to volume ratio.

Therefore, the surface area to volume ratio increases with the decrease in cell size.

So, the correct answer is 'Decreases'