Which of the following is true regarding diffusion rates in cells?

A. Surface area has no impact compared to volume on the diffusion rate.
B. Surface area and volume do not affect simple diffusion.
C. A small, smooth sphere has the highest rate of diffusion of all cell shapes.
D. An increase in cell surface area increases the rate of diffusion.

The correct answer is D: An increase in cell surface area increases the rate of diffusion. A larger surface area allows for more efficient transport of molecules into and out of the cell. A small, smooth sphere has the highest rate of diffusion due to its optimal surface area-to-volume ratio.
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Answered by Anonymous | 2025-07-04

An increase in cell surface area enhances the diffusion rate, making it easier for cells to exchange substances efficiently. A small, smooth sphere has the optimum shape for diffusion due to its favorable surface area-to-volume ratio. Understanding these principles is crucial in cellular biology for explaining how substances move across cell membranes. ;

Answered by GinnyAnswer | 2025-07-04