Diffusion and Solutes (Net Movement of Solutes)

Vocabulary flashcards covering diffusion, solute, solvent, concentration gradient, and examples of solutes.

Diffusion

The net movement of solutes from an area of higher concentration to an area of lower concentration, down a concentration gradient, until equilibrium.

Solute

The substance dissolved in a solvent; components of a solution other than the solvent.

Solvent

The substance in which solutes are dissolved; in biology, usually water.

Concentration gradient

A difference in the concentration of a solute between two regions; diffusion occurs down this gradient.

Common solutes

Salts (e.g., NaCl), sugars (e.g., glucose), amino acids, and gases (e.g., O2, CO2) dissolved in a solvent.