Below is a list of molecules with different chemical characteristics.Knowing that all molecules will eventually diffuse across a phospholipid bilayer, select the option below that most accurately predicts the relative rates of diffusion of these molecules (fastest to slowest).
Alanine estrogen propanol sodium

Question

Quizplus · Accepted Answer

Estrogen, being a steroid hormone, is lipid-soluble and diffuses through the lipid bilayer most rapidly. Propanol, a small, somewhat polar molecule, diffuses more slowly. Alanine, a small amino acid with both polar and ionic properties, diffuses even more slowly. Sodium ions, being charged, have the slowest diffusion rate through the nonpolar lipid bilayer without assistance.

Below Is a List of Molecules with Different Chemical Characteristics