PATHOLOGY

Detailed explanation-1: -Key Concepts. Osmosis is the transport of a solvent through a semipermeable membrane that separates two solutions of differing solute concentration. During osmosis, the solvent moves from the solution that is lower in solute concentration to the solution that is higher in solute concentration.

Detailed explanation-2: -Importance of Facilitated Diffusion Ions like sodium, potassium, and calcium are charged and are repelled by the cell membrane. Amino acids and nucleic acids are polar and too large to cross the cell membrane. Also, the water movement across the membrane in bulk is difficult at times.

Detailed explanation-3: -Osmosis is the movement of water across a membrane. Salt triggers osmosis by attracting the water and causing it to move toward it, across the membrane. Salt is a solute. When you add water to a solute, it diffuses, spreading out the concentration of salt, creating a solution.