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What is the relationship between a concentration gradient and the rate of diffusion?
Wiki User
∙ 7y ago
the concentration gradient is about both active and passive transport
equilibrium is when the is no concentration gradient
but equilibrium is a transient condition
this is because molecules are in constant random motion
the electrons spinning around the molecule's nucleus keep them in random motion
since they're in random motion they constantly bump into each other
since the constantly bump into each other they try to spread out
this describes the force of diffusion
so, when the molecules are bunched together they have high concentration
they'll try to spread out, which moves them to lower concentration
this means they have moved down the concentration gradient
it is passive transport because these was no energy used to make it happen
as long as the molecules are small enough
in other words as long as there's no large molecules dissolved in the solution
then the solution and its solutes are free to diffuse
but any large molecules dissolved in the solution will not pass through a semipermeable membrane
Wiki User
∙ 11y ago
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What is concerntration gradient?
As used in the process of diffusion, the concentration gradient is the graduated difference in concentration of a solute within a solution (as expressed per a unit distance). Molecules tend to move from areas of greater concentration to areas of lesser concentration. i.e. down the gradient.
How does the Concentration gradient of a substance affect the movement of that substance and the expenditure of energy?
The larger the concentration gradient (bigger difference between the two solutes across semipermeable membrane) the faster the rate of diffusion.
What is the difference between diffusion and dispersion?
Diffusion is generally the process in which a constituent moves through a concentration gradient and dispersion is referred to the bulk flow of the molecules.
Rate of diffusion is dependent upon molecular?
size, temperature, and concentration gradient. Smaller molecules diffuse faster than larger molecules, as they can more easily navigate through the spaces between other molecules. Higher temperatures increase the kinetic energy of the molecules, leading to faster diffusion. A steeper concentration gradient, where there is a large difference in concentration between two areas, also promotes faster diffusion.
What is the relationship between concentration gradient and active and passive transport?
Concentration gradient= the relative amount of a given substance contained within a solution or in a particular volume of space; the amount of solute per unit volume of solution • the action of strengthening a solution by the removal of water or other diluting agent or by the selective accumulation of atoms or molecules. Diffusion= net movement of particles from an area of higher concentration to an area of lower concentration The concentration gradient is the amount of substance in a particular area (the substance stays together) Diffusion is when the substance gradually spreads out in its' area. e.g: If you spray perfume in a room, eventually you can smell it all around the room because of diffusion. However if you spray the perfume in the room and it just stays in one spot, that is the concentration gradient.
What forms a concentration whenever there is a difference in concentration between one place and another?
A concentration gradient forms when there is a difference in concentration between one place and another.
What controls the rate of diffusion?
The rate of diffusion is directly related to the concentration of gradient. For example, the greater the amount between the concentration of the areas, the greater the greater to difference in diffusion.
What is a similarity between osmosis and diffusion?
they are both the movement of particles from a region of high concentration to a region of low concentration down a concentration gradient
What is concerntration gradient?
As used in the process of diffusion, the concentration gradient is the graduated difference in concentration of a solute within a solution (as expressed per a unit distance). Molecules tend to move from areas of greater concentration to areas of lesser concentration. i.e. down the gradient.
Compare and contrast between osmosis and facilitated diffusion?
Osmosis is when a solvent moves from a lower concentration to a higher concentration. Facilitated diffusion is when a solvent moves down the concentration gradient through carrier molecules.
What is the differences between simple and active diffusion?
Simple diffusion goes with a concentration gradient and does not use ATP where active transport uses ATP to go against a concentration gradient.
How does the Concentration gradient of a substance affect the movement of that substance and the expenditure of energy?
The larger the concentration gradient (bigger difference between the two solutes across semipermeable membrane) the faster the rate of diffusion.
What is the difference between diffusion and dispersion?
Diffusion is generally the process in which a constituent moves through a concentration gradient and dispersion is referred to the bulk flow of the molecules.
What id the difference between active and passive transport?
Active transport requires ATP and passive transport does not. Active transport goes against the concentration gradient and passive transport goes with the concentration gradient and includes osmosis, diffusion and facilitated diffusion.
What is a major difference between facilitate diffusion and active transport?
Active transport moves substances against the concentration gradient.
Rate of diffusion is dependent upon molecular?
size, temperature, and concentration gradient. Smaller molecules diffuse faster than larger molecules, as they can more easily navigate through the spaces between other molecules. Higher temperatures increase the kinetic energy of the molecules, leading to faster diffusion. A steeper concentration gradient, where there is a large difference in concentration between two areas, also promotes faster diffusion.
What is diffusion gradient?
a gradual change in the concentration of solutes in a solution as a function of distance through a solution. 2. the gradual difference in the concentration of solutes in a solution between two regions. In biology, a gradient results from an unequal distribution of ions across the cell membrane. When this happens, solutes move along a concentration gradient. This kind of movement is called diffusion.
