In a hypertonic solution, water flows through aquaporins embedded in the plasma membrane of the cell. This type of transport is best known as which of the following?

Active transport is a process that moves ions, molecules or compounds across a cell membrane from a region of lower concentration to a region of higher concentration. This process is against the concentration gradient and requires energy, usually in the form of ATP. Therefore, it does not describe the passive flow of water through aquaporins in a hypertonic solution.

Diffusion is the process where molecules spread out evenly in an available space, moving from an area of higher concentration to an area of lower concentration until equilibrium is reached. While diffusion is a passive process and doesn't require energy, it does not specifically describe the movement of water through aquaporins.

Facilitated diffusion is a type of passive transport that allows substances to cross membranes with the assistance of special transport proteins. While this process is similar to osmosis and involves protein channels, it doesn't specifically refer to the transport of water. Facilitated diffusion can involve various solutes including ions, sugars, and amino acids.