AP BIOLOGY

Detailed explanation-1: -If the cell grows too large, the plasma membrane will not have sufficient surface area to support the rate of diffusion required for the increased volume. In other words, as a cell grows, it becomes less efficient.

Detailed explanation-2: -This has an effect on diffusion because it relies on the surface area of a cell: as a cell gets bigger, diffusion becomes less efficient. The solution to producing larger organisms is for them to become multicellular.

Detailed explanation-3: -The rate of diffusion is inversely proportional to the size of the molecules. This means that the smaller is the size of the molecule, the higher is the rate of diffusion.

Detailed explanation-4: -Smaller cells have a much greater surface area to volume ratio allowing material to diffuse throughout the entire volume of the cell quickly and efficiently.

Detailed explanation-5: -Particles with a smaller hydrodynamic radius have larger diffusion constant but weaker interaction with the sphere while larger particles have smaller diffusion constant but stronger interaction with the sphere.