Question

Water can move freely through the membrane from a higher to a lower concentration in a transportation process called _____.

Answer 1

Answer: The correct answer for the fill in the blank is osmosis.

Osmosis is defined as the movement of solvent (like water) from a region where the concentration of solute is lower to a region where the concentration of solute is higher though a semipermeable membrane.

In other words, it is the water movement from an area where its ( water ) concentration is higher to an area where its concentration is lower.

This process does not require any energy as water is moving along the concentration gradient.  

Answer 2

The movement of water, from greater to lesser, through a membrane is osmosis. Particles and gases move by diffusion,