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The four main kinds of passive transport are diffusion, facilitated diffusion, filtration and osmosis.
Passive transport is the movement of a substance across a cell membrane with its concentration gradient (from high to low concentration) and it uses no energy.
Osmosis is a special term used when water is the substance being moved.
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What is the scientific definition of osmosis?
Osmosis is the movement of water molecules through a selectively-permeable membrane down a water potential gradient.
What is the movement of molecules from areas of higher concentration to lower concentration until equilibrium is met?
The movement of particles from an area of high concentration through a semi-permeable membrane to an area of low concentraton is the process of diffusion. I'm sorry but I do not think that answer is good enough. It is a form of diffusion, where only small particles, small enough to pass through the membrane can get through. When I was in school the statement above was the definition of osmosis, the whole point being it was diffusion through a semi-permeable membrane, selecting for only small enough particles. It seems some time between 1992 and 2003 the definition was changed to the movement of water, and not particles and now in 2010 the definition is the movement of solvents. I would like to know how and why the definition osmosis was changed, why and what is the justification? I would also like to know why the original meaning of osmosis, which made perfect sense, has been changed to "it's the definition of diffusion and not osmosis any more", when in fact it isn't a clear enough word to describe the process? Surely the new definition of osmosis is also diffusion?
What process is the diffusion of water through a selectively permeable membrane?
This is the process of osmosis. The membrane allows a solvent (usually water) to move from an area with lower solute concentration to one with greater concentration.
What is the osmosis definition?
"Osmosis is the diffusion of a solvent (frequently water) through a semi-permeable membrane, from a solution of low solute concentration (high water potential) to a solution with high solute concentration (low water potential), up a solute concentration gradient."
What is the definition for osmosis?
# a physical chemistry,cell biology. ------------------------------ Movement of solvent through a semipermeable membrane so as to equalize the concentration of solute across the membrane.
By definition what is the only substance that carries out osmosis?
The definition of osmosis does not restrict this phenomenon to any single substance. I don't know where you would get that idea. In practice, most of the situations involving osmosis, that are of interest to us, take place in an aqueous medium. But osmosis can occur in other media.
What is the scientific definition of osmosis?
Osmosis is the movement of water molecules through a selectively-permeable membrane down a water potential gradient.
What is the complete definition of diffusion osmosis?
I think that it means that you have allot of stuff.
what is exact definition of osmosis?
Osmosis is the movement of water across a semipermeable membrane from a higher concentration of water to a lower concentration of water without the use of energy.
Do osmosis has a high or low concentration?
As per Definition of osmosis: "Osmosis is the passage of water from the region of high water concentration through a semi permeable membrane to a region of low water concentration". Thus, Osmosis do have an area of high and low concentration of water solutions.
A simple definition for osmosis in science?
Osmosis is the mobement of water molecules from a region where they are a high water potential to a region where there is a low water potential across a selectively permeable membrane until uniformity is reached.
Does osmosis require a carrier?
NO. Osmosis( by definition) is the DIFFUSION of water from a high concentration gradient to a low concentration gradient across a semipermeable membrane. As diffusion is a form of passive transport, it doesnt require a carrier
What is the relationship between osmosis and turgor pressure?
Water enters into plants by Osmosis and water causes turgor pressure Tugor definition= the state of turgidity and resulting rigidity of cells (or tissues), typically due to the absorption of fluid.
What is the movement of molecules from areas of higher concentration to lower concentration until equilibrium is met?
The movement of particles from an area of high concentration through a semi-permeable membrane to an area of low concentraton is the process of diffusion. I'm sorry but I do not think that answer is good enough. It is a form of diffusion, where only small particles, small enough to pass through the membrane can get through. When I was in school the statement above was the definition of osmosis, the whole point being it was diffusion through a semi-permeable membrane, selecting for only small enough particles. It seems some time between 1992 and 2003 the definition was changed to the movement of water, and not particles and now in 2010 the definition is the movement of solvents. I would like to know how and why the definition osmosis was changed, why and what is the justification? I would also like to know why the original meaning of osmosis, which made perfect sense, has been changed to "it's the definition of diffusion and not osmosis any more", when in fact it isn't a clear enough word to describe the process? Surely the new definition of osmosis is also diffusion?
What process is the diffusion of water through a selectively permeable membrane?
This is the process of osmosis. The membrane allows a solvent (usually water) to move from an area with lower solute concentration to one with greater concentration.
Osmosis?
Osmosis is
What is the osmosis definition?
"Osmosis is the diffusion of a solvent (frequently water) through a semi-permeable membrane, from a solution of low solute concentration (high water potential) to a solution with high solute concentration (low water potential), up a solute concentration gradient."
