A diffusion gradient exists in tissues due to differences in concentration of substances. This gradient drives the passive movement of molecules from areas of higher concentration to areas of lower concentration, allowing cells to obtain necessary nutrients and get rid of waste products.
A difference in the concentration throughout space because diffusion doesn't just happen in a cell or aqueous solution by definition diffusion is just from high to low concentration
Simple diffusion
Down the concentration gradient
If a substance moves down its concentration gradient, it means that it is moving from an area where it has a high concentration to an area where it has a low concentration. This is known as diffusion.
For diffusion to occur there needs to be a concentration gradient. Which means that the concentrations on the two sides must be different. In diffusion the particles flow from high concentration to low concentration.
Diffusion is affected by a decrease in concentration gradient because concentration gradient is directly proportional to the rate of diffusion. A decrease in concentration gradient also lowers the rate of diffusion.
A difference in the concentration throughout space because diffusion doesn't just happen in a cell or aqueous solution by definition diffusion is just from high to low concentration
a gradient
Yes it does.
diffusion is occur when different concentration gradient is applied
Diffusion continues until there is no longer a concentration gradient present between the two regions. Once equilibrium is reached, the molecules will be evenly distributed throughout the system and diffusion will stop.
The greater the concentration gradient, the faster the rate of diffusion.
The greater the concentration gradient, the faster the rate of diffusion.
The rate of diffusion is determined by the permeability of the membrane and the concentration gradient.
Simple diffusion
Yes, diffusion is quicker when there is a higher concentration gradient because it drives the movement of molecules from areas of higher concentration to areas of lower concentration more rapidly. The steeper the concentration gradient, the faster the rate of diffusion.
Facilitated diffusion moves molecules with the concentration gradient, from an area of high concentration to an area of low concentration.