Question

the process of water moving down its concentration gradient is called
multiple choice
coupled transport
osmosis
active transport
receptor mediated endocytosis

Explanation:

• Coupled transport involves the simultaneous movement of two substances, not specific to water's concentration gradient movement.
• Osmosis is defined as the movement of water molecules across a semi - permeable membrane down their concentration gradient (from an area of higher water concentration to an area of lower water concentration, or equivalently from lower solute concentration to higher solute concentration).
• Active transport requires energy input and moves substances against their concentration gradient, which is the opposite of the described process.
• Receptor - mediated endocytosis is a process for the uptake of specific molecules into cells, not related to water movement down a concentration gradient.

Answer:

B. osmosis