Dissolved substances have to pass through the cell membrane to get into or out of a cell. Diffusion is one of the processes that allows this to happen.Diffusion diffusion: The movement of particles (molecules or ions) from an area of higher concentration to an area of lower concentration occurs when particles spread.They move from a region where they are in high concentration to a region where they are in low concentration.Diffusion happens when the particles are free to move. This is true in gases and for particles dissolved in solutions.Particles diffuse down a concentration gradient, from an area of high concentration to an area of low concentration.issolved substances have to pass through the cell membrane to get into or out of a cell. Diffusion is one of the processes that allows this to happen.
Annealing is a process by which the properties of steel are enhanced to meet machinability requirements. Annealing is a process of heating the steel slightly above the critical temperature of steel (723 degrees Centigrade) and allowing it to cool down very slowly.slide 2 of 3.. Isothermal Annealing â This is a process where is steel is heated above the upper critical temperature. This causes the structure of the steel to be converted rapidly into austenite structure.
Definition of assay. transitive verb. 1a : to analyze (something, such as an ore) for one or more specific components assayed the gold to determine its purityb : to judge the worth of : estimate assay the results of the new changes.