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Diffusion is complete when there ceases to be a concentration gradient. For example diffusion has ended if the concentration of a substance is equal on the inside and outside of a permeable membrane, this state is also referred to as dynamic equilibrium.
Wiki User
∙ 12y ago
Wiki User
∙ 7y agoSimple diffusion depends on a concentration gradient being present, so as soon as that gradient disappears, diffusion stops. That is to say, diffusion stops when the concentration on each side of the diffusion barrier is the same, or is solution, when the concentration is the same throughout, and there are no longer any areas of high and low concentration.
Wiki User
∙ 15y agoWhen an equilibrium is reached
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What is necessary for simple diffusion?
1, concentration gradient 2. diffusion constant >0
How is osmosis similar to simple diffusion?
Both affected by Concentrations?
What is the random movement of molecules and ions down their concentration gradient called?
The random movement of molecules and ions down their concentration gradient (meaning from an area of high concentration to an area of low concentration) is called simple diffusion. Simple diffusion is related to the magnitude of driving force, permeability of the membrane, and surface area.
Why is diffusion insufficient meet the oxygen requirements of multicellular organisms like humans?
In single-celled organisms the entire surface of the organisms is in contact with the environments for the diffusion of substances. In multi-cellular organisms all the cells may not be in direct contact with the surrounding environment. So simple diffusion will not meet the requirements of all the cells.
What is the difference between simple diffusion and facilitated diffusion?
It doesn't. (answer by RRU member Cyrem)
Are osmotically active substances simple diffusion or active transport?
simple diffusion.
Is simple diffusion the net diffusion of a solvent?
no
What are the 3 types of diffusion?
simple diffusion, osmosis and facilitated diffusion.
How does faciliated diffusion differ from simple diffusion?
Facilitated diffusion needs some sort of help. Often it would be a protein. Simple diffusion doesn't. If you spill something smelly on the floor in the kitchen, you will smell it all through the house. It will spread by simple diffusion.
How does gases enter and leave capillaries?
Simple diffusion.
What are the limitation of simple diffusion using the amoeba as an example?
Simple diffusion really says it for itself. Mostly simple molecules and substances can pass through. Water, O2 or CO2, or other small simple molecules are the limited spectrum of simple diffusion.
What happens in simple diffusion?
In simple diffusion, a substance passes through a membrane without any outside intermediary. The rate of diffusion is based on the force exerted..
What are the examples of simple diffusion?
Osmosis is one of the easiest-to-understand examples of diffusion. Past that, you will need to define 'simple'.
How does facilitated diffusion from simple diffusion?
It doesn't. (answer by RRU member Cyrem)
What is diffusion simple?
Simple diffusion is the net movement of substances from a region of high concentration to a region of low concentration so its overall net movement is along the concentration gradient. Simple diffusion does not require energy therefore it is 'passive', substances are diffused across the membrane between the phospholipids.
The movement of oxygen into cells from the bloodstream is accomplished through?
Diffusion, specifically simple diffusion
What is the similarity between simple diffusion and facilitated diffusion?
both need transport protein
