Definition Of Diffusion Quizlet

This form of diffusion is regulated by protein channels in the membrane and requires no energy input from the cell active transport movement of molecules or ion into or out of the cell against its concentration gradient from low to high and requires an input of energy.

Definition of diffusion quizlet. Learn vocabulary terms and more with flashcards games and other study tools. The movement does not require energy. Start studying osmosis and diffusion. Movement of water across a semipermeable membrane from an area of high water concentration to an area of lower water concentration c.

In some large cities there are transit systems that include trains with multiple cars. Start studying diffusion and osmosis biology 1. Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration. Find out more in this bitesize science video for ks3.

Let s look at something that you may have experienced at some point in your life. Which is the best definition of diffusion. Definition of diffusion the net movement of molecules or ions from a region where they are more highly concentrated to one where their concentration is lower until evenly distributed until they reach equilibrium. The material that diffuses could be a solid liquid or gas.

Passive diffusion is the movement of molecules across a membrane such as a cell membrane. In facilitated diffusion a molecule is transported across a membrane with the help of a carrier protein. Similarly the medium in which diffusion occurs could also be in one of the three physical states. Movement of molecules from an area of their lower concentration to an area of their higher concentration.

Learn vocabulary terms and more with flashcards games and other study tools. Diffusion is the movement of particles from higher to lower concentration.