What is a simple definition of diffusion?
1 : the act of spreading or allowing to spread freely. 2 : the mixing of particles of liquids or gases so that they move from a region of high concentration to one of lower concentration.
What is diffusion GCSE AQA?
Diffusion is the spreading out of the particles of any substance in solution, or particles of a gas, resulting in a net movement of particles from an area of higher concentration to an area of lower concentration.
Which definition best describes diffusion?
Which of the following best describes the process of diffusion. Diffusion is the movement of molecules from and area higher concentration to one of lower concentration by random molecular motion.
What is diffusion in biology definition?
diffusion, process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration. A familiar example is the perfume of a flower that quickly permeates the still air of a room. ion diffusion across a semipermeable membrane.
What is diffusion GCSE biology?
Diffusion is the random movement of a substance from a region of high concentration to a region of low concentration (ie: down the concentration gradient). For example, oxygen moves from a high concentration in the lungs to a low concentration in the blood.
What is diffusion in biology GCSE?
What is diffusion in biology class 11?
Diffusion. The movement of molecules from regions of higher concentration to regions of lower concentration is called diffusion. Movement by diffusion is passive. Diffusion rates are affected by the gradient of concentration, the permeability of the membrane separating them, temperature, and pressure.
What is diffusion biology quizlet?
Diffusion. Movement of particles or molecules from an area of high concentration to an area of low concentration.
What is diffusion BBC Bitesize?
Diffusion is the movement of a substance from an area of high concentration to an area of lower concentration . Diffusion occurs in liquids and gases when their particles collide randomly and spread out. Diffusion is an important process for living things – it is how substances move in and out of cells.
What is diffusion Class 12?
Diffusion is the process where gaseous atoms and molecules are moved from regions of comparatively high concentration to regions of comparatively low concentration. Diffusion of gas is inversely proportional to the molecular weight of the gases.
What is the best definition of diffusion quizlet?
Diffusion. the random movement of molecules from an area of higher concentration of those molecules to an area of lower concentration.
What is diffusion GCSE science?
What is diffusion Class 11?
What is diffusion class 10 biology?
Diffusion is the movement of particles from a region of higher concentration to a region of lower concentration.
What is diffusion in cell transport?
Active Transport: molecules move across cell membranes by two major processes diffusion or active transport. Diffusion is the movement from a high concentration of molecules to a low concentration of molecules. Molecules can diffuse across membranes through the phospholipid bilayer or using a special protein.
What is diffusion and osmosis in biology?
In diffusion, particles move from an area of higher concentration to one of lower concentration until equilibrium is reached. In osmosis, a semipermeable membrane is present, so only the solvent molecules are free to move to equalize concentration.