what do mean by isotonic solution?
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A solution with the same ionic concentration as a cell.  For example, PBS is a isotonic solution with respect to human cells.  Hypertonic is higher ionic concentration, hypotonic is lower ionic concentration.  hyptonic solns will lyse cells because of osmosis, water flows into the cells while solutes flow out of the cell, to reach equilibrium.  Thus cells will lyse in water without signficant amts of solvents.
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aqueous?\n\nany solute dissolved in water is then referred to as an aqueous solution. all acids are referred to as aqueous.\n\nex: HCl(aq) and NaCl(aq)
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C because the solution is SATURATED with solute, meaning no more solute can be dissolved by the solvent in the solution.
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I would say an isotonic solution of salt (0,9%) is good enough and no sodium bicarbonate is needed.
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In a hypotonic solution, the concentration of solutes on the inside is HIGHER than on the outside, so to equilibrate this, the cell must allow either the solvent to flow in or it must transport the solutes out of the cell.  In an experiment, there is no active transport, so the only way to equilibrate the concentrations on the insides and outsides of the cell is by osmosis, the diffusion of water.  In a hypotonic solution, water will flow into the cell, and if the cell cannot contain it, then it will lyse.\n\nA hypertonic solution is when the concentration on the inside is LOWER than the outside, the it's the vice versa of the hypotonic solution situation above.\n\nAn isotonic solution means that the concentrations are equal, so the rate of water flowing in is equal to that of the rate of water flowing out.
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more soluble in what solution?
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Isotonic Stretching or Active Stretching is a Yogic [Yoga] 'Asama' or exercise designed to relieve physical and emotional stresses.\n\nIsotonic Stretching is where the agonist (active and opposite reciprocal muscle) is activated to stretch the antagonist muscle (the one being stretched). This is where movement of the joint occurs again by the same action of activating the agonist muscle which lengthens/stretches the opposite reciprocal muscle called the antagonist. That's like activating the quads to stretch the hamstrings in forward fold. This also can help relieve tension and chronic emotional/mental armoring, break up old holding patterns of both thought and action, loosen up knots and constricting patterns of body and thought, and move new energy through the body. It is more successful with people who have become dissociated and/or overly passive. Active stretching is more fiery and builds more muscle, than passive stretching.
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Osmotic pressure or turgor (also called turgor pressure) is the pressure produced by a solution in a space that is enclosed by a differentially permeable membrane.\n\nWhen a biological cell is in a hypotonic environment (the cell interior contains a lower concentration of water than its exterior), water flows across the cell membrane into the cell, causing it to expand. The membrane (or, in plant cells, the cell wall) restricts the expansion, which causes an increase in pressure. The resulting pressure is called turgor. This pressure is what prevents more water from flowing into the cell, thus creating a pressure equilibrium between water flowing down the concentration gradient and the taut membrane pushing back. In this example, the equilibrium prevents the cell from ever becoming isotonic to its environment. Cells not adapted to hypotonic environments, with the flow of water into them but no strong membrane or cell wall, will burst. The osmotic pressure π of a dilute solution can be calculated using the formula\n\n pi = MRT\n \nwhere\n\nM is the molarity \nR is the gas constant \nT is the absolute temperature \nNote the similarity of the above formula to the ideal gas law, and also that osmotic pressure is not dependant on particle charge.
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solute is the substance that dissolves into the solvent. i.e. in salt and water, salt would be the solute and water would be the solvent.
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The "dynamic equilibrium" means this: suppose you make a saturated solution of some salt, and add a little more, so there will be some solid salt present.  There will be an ongoing (dynamic) process such that some of the solid will be dissolving, while some of the salt in solution will be precipitating, continuously.  But overall, the amounts of salt that are dissolved and solid stay constant.
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When a solution and a pure solvent are separated by a semipermeable membrane the volume of the solution increases because the net movement of the solvent molecules is from the pure solvent to the solution.  The liquid in the tube above the solution slowly rises.  If the membrane is strong enough to withstand the pressure and if the tube is long enoughj the liquid will rise until its hydrostatic pressure is great enough to prevent further osmosis of solvent molecules into the solution.
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This a solution that may be impure because of the possibility of contamination. it is a term in chemistry and in poison control oh public health
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Biological solution is a solution which used for maintaining the balance of living cells.By adding this solution, some cell cultures or organ of any kinds of living thing can survive or still alive.
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Sit-ups, push-ups and pull-ups are isotonic, lifting free weights, like dumbbells and barbells, is considered the classic form of isotonic exercise ...
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ok, so generally speaking, in the hypotonic environment, a cell is swell up, and potentially burst. The way to remember this is that hypO (the letter O)tonic is the cell which is normally drawn as a more squarelike shape becomes circular as it takes on water. In an isotonic solution, the environment and the cell have equal solutes so no movement of water occurs. In a hypertonic solution (lots of particles in the environment) so the water leaves the cell and shrivels up. \nHowever, we also have to take into account the type of cell that we are placing into these environments. The above applies to animal cells and paramecium as they don't have rigid cell walls. However, plant cells do have cell walls so it does not apply to them. Plant cells have what we call turgor pressor, so they can withstand the environmental influences, or changes in tonicity, alot better. When the plant takes on water, it has the cell wall to prevent bursting. When the plant cell looses water, the cytoplasm shrinks while the cell wall keeps the cell's shape.\n\nQuestion 2:\nIf you were to place elodea or paramecium from fresh to salt water:\nwhen elodea is placed in salt water, we observe the process of plasmolysis - shrinkage of cell contents due to water loss.\nfor image see:\nhttp://images.apple.com/education/solutions/iwork/lessons/media/RealWorldScienceSample.pdf\n\nWith Paramecium: it has 2 contratile vacuoles that are used to balance salt concentration by expelling water
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Its a decomposition equation. In essence Sodium Chloride (salt) breaks down into the Sodium ion and the Chlorine Ion. Chances are it's talking about NaCl when it's an aqueous solution (a solution who's solvent is water)
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http://www.chem.purdue.edu/gchelp/howtosolveit/Solutions/concentrations.html