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When two aqueous solutions that differ in solute concentration are placed on either side of a semipermeable membrane and osmosis is allowed to take place the water will?
Wiki User
∙ 10y ago
Osmosis is sometime a bit tricky to wrap one's head around.
We know that diffusion, a form of passive transport, brings "equilibrium" to concentrations of a solute within a give vessel. Imagine I put a few drops of food colouring into a tall glass of water. As soon as they make contact with the water, they begin to spread, ultimately over time, adding a hue of the original colour to the entirety of the vat.
With osmosis, rather than moving the solute (food colouring), it is the solvent which is moving across the membrane(water transport).
Assume, for argument's sake, that our special food colouring will not transverse the semi-permeable membrane. We have equal volumes of water on both side of the membrane, but one side contains twice as much food colouring as the other (higher concentration of colour is "hypertonic" to lesser concentration).
What we will observe is the movement of water from the hypotonic side (more water, less colour) to the hypertonic side (less water, more colour). The idea is, while the total mass of solute on both sides does not change, equilibrium will be achieved by moving water. By the time both solutions have the same hue (concentration), water will have shifted FROM the HYPOTONIC side TO the HYPERTONIC side, making both sides ISOTONIC.
I'm guessing you're learning about this for a Biology class of sorts. Best way to show osmosis is with crenation (crumpling) of a blood cell in a hypertonic solution, and the violent expansion and rupture (lysis) of a blood cell in a hypotonic solution.
The following is a <a href="http://www.YouTube.com/watch?v=7-QJ-UUX0iY">video from Youtube</a> to help you visualize what I've been yammering on about.
Wiki User
∙ 10y ago
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If a chemist wants to study dissfusion should a semipermeable membrane be used?
Diffusion is essentially the movement of solute molecules from a region of higher concentration to a region of lower concentration. A semi permeable membrane need not be used to study this phenomenon
What does semi permeable membrane do?
I semi-permeable membrane is a membrane when only certain substances can pass through it.it is a membrane that will only allow certain molecules through it . in general oxygen , food and water are allowed to enter ; waste products are allowed to exit and harmful substances are kept out. hope this helps.
When two aqueous solution that differ in solute concentration are placed on either side of a seipermeable membrane and osmosic is allowed to take place th the water will?
The water will move towards the higher solute concentration until both sides are isotonic.
What happens to the resting membrane potential if ATP was depleted in a nerve cell?
All active transportation of ions would stop and ions would be allowed to run down their concentration gradients, eventually reaching equilibrium. At this stage there would be no more electrochemical potential difference across the cell membrane.
What organelle moves substances across the cell in one direction?
The plasma membrane surrounding animal cells is where the exchange of substances inside and outside of cells takes place. Some substances need to move from the extracellular fluid outside cells to the inside of the cell, and some substances need to move from the inside of the cell to the extracellular fluid.Some of the proteins that are stuck in the plasma membrane help to form openings (channels) in the membrane. Through these channels, some substances such as hormones or ions are allowed to pass through. They either are "recognized" by a receptor (a protein molecule) within the cell membrane, or they attach to a carrier molecule, which is allowed through the channels. Because the plasma membrane is choosy about what substances can pass through it, it is said to be selectively permeable.
If a chemist wants to study dissfusion should a semipermeable membrane be used?
Diffusion is essentially the movement of solute molecules from a region of higher concentration to a region of lower concentration. A semi permeable membrane need not be used to study this phenomenon
What semipermeable is only allowed certain molecules to enter the cell?
cell membrane may be what you are looking 4
How does osmosis take up water?
Osmosis is the transfer of a solvent (e.g. water) through a semipermeable membrane from a less concentrated solution on one side to a more concentrated solution on the other side. Osmosis is driven by ordinary statistical diffusion, the same movement of solvent occurs even without the membrane but the membrane prevents other types of mixing (e.g. mechanical, convection) that would allow mixing of solutes in the solutions. Only mixing by diffusion through the membrane is allowed.
What happens when concentration gradient 0?
When the concentration gradient is 0, no flow is allowed to go through the cell wall. To get motion through a membrane, the concentration gradient must be higher than 0.
What does semi permeable membrane do?
I semi-permeable membrane is a membrane when only certain substances can pass through it.it is a membrane that will only allow certain molecules through it . in general oxygen , food and water are allowed to enter ; waste products are allowed to exit and harmful substances are kept out. hope this helps.
What would happen to the resting membrane potential of a neuron if sodium were allowed to travel freely down its concentration gradient?
The cell will depolarise
Does the cell membrane let things pass through it?
Yes the cell membrane lets things past through it. The cell wall does not allow things to pass through.
When two aqueous solution that differ in solute concentration are placed on either side of a seipermeable membrane and osmosic is allowed to take place th the water will?
The water will move towards the higher solute concentration until both sides are isotonic.
What is the role of the cell membrane in moving substance in and out of the cell?
The cell membrane is considered to be semipermeable. This means that it will let some substances through (either in or out), but others it won't. The cell membrane is considered to be 3 layers (lipid, protein, lipid) Certain proteins will help substances into the cell, but some they won't let in. Generally, smaller molecules (oxygen, water, CO2, etc.) will pass through easier than larger molecules (glucose, other sugars). Basically, the cell membrane determines what substances are allowed to pass it/out of the cell.
What happens to the resting membrane potential if ATP was depleted in a nerve cell?
All active transportation of ions would stop and ions would be allowed to run down their concentration gradients, eventually reaching equilibrium. At this stage there would be no more electrochemical potential difference across the cell membrane.
What do you call the membrane that allowed the movement of molecule?
osmosis
What is the concentration of diethylene glycol allowed in toothpastes?
zero
