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How does concentration gradient effect a fluid's ability to cross a membrane?
Wiki User
∙ 12y ago
The membrane serves as both an insulator and a diffusion barrier to the movement of ions. Ion transporter/pump proteins actively push ions across the membrane to establish concentration gradients across the membrane, and ion channels allow ions to move across the membrane down those concentration gradients,
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoThe more dilute fluid moves to the side of the membrane with a higher solute concentration, therefore diluting it.
The theory can be generalized by understanding that matter in the universe tends towards chaos. this means disorder is always more easily attained and therefore a lower energy is required to accomplish disorder from a state of order. (In simpler terms if you have a bunch of little things, atoms in this case, that keep moving randomly little by little as they "vibrate", eventually any neat rows you started with will always tend to be less orderly and more "chaotic" where some are here and some are there, some free space, some clumping too. Just pure random chaos.)
Now if you set up your neat orderly atoms/molecules at the extreme case... on one side of the membrane only, and give it enough time, some will eventually end up crossing the membrane, and with time they will be farther and farther apart from one another in general so statistically they cover all areas they can get to and that includes both sides of the membrane! With a gradient the same thing happens just less "pressure" to move across the membrane because there were fewer molecules/atoms to begin with so the process is just slower. But, given enough time, both sides will be nearly evened out with the same concentration (mostly because there's nothing stopping it from doing this.
When the molecules themselves cannot cross the membrane, the solution has the same effect by moving to an area where it (the fluid) is less concentrated, thereby diluting the solute molecules more and more.
Wiki User
∙ 11y agoby sucking my D
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What effect does the concentration gradient of the interstitial fluid have on the maximum urine concentration?
The urine concentration increased.
What effect does boiling have upon isolated chloroplast how does this effect the chloroplasts ability to perform the hill reaction?
Boiling the chloroplasts will break them. Thus they will not be able to do the Hill reaction, as they will not have an intact membrane upon which to build up a pH gradient.
How does drinking salt water affect your cell membrane?
i think you mean to ask what effect salt water has on a cell. if you were to introduce a cell into an environment that has a higher salt concentration that its own internal concentration, you would create a concentration gradient (difference). water would diffuse across the cells membrane OUT of the cell and into the external environment in a process called osmosis, in an attempt to even out the differences in concentration by diluting the outside saltier environment. the result would be a shrivelled more "dehydrated" or hypertonic cell.
What effect does diffusion have on the concentration of substances on either side of a membrane?
Diffusion is the movement of particles from a region of higher concentration to a region of lower concentration. If no other factors are involved, the concentration in the higher region will fall and the concentration in the lower region will rise until the concentration is equal on both sides of the membrane. Diffusion will continue, but on average equal numbers of particles will diffuse in both directions during equal periods of time. This is called a dynamic equilibrium. For a basic introduction to diffusion see: http://www.bbc.co.uk/schools/gcsebitesize/biology/cellprocesses/2diffusionandosmosisrev2.shtml For more detail see: http://www.blobs.org/science/article.php?article=20
What is the effect of heat on beetroot?
The effect of heat on beetroot is that the membrane becomes impacted. It causes the membrane to be more permeable.
What two forces drive the passive transport of ions across a membrane?
Two forces drive the passive transport of ions across a membrane: -the concentration gradient of the ions -the effect of membrane potential (voltage) on the ions
What effect does the concentration gradient of the interstitial fluid have on the maximum urine concentration?
The urine concentration increased.
What effect does boiling have upon isolated chloroplast how does this effect the chloroplasts ability to perform the hill reaction?
Boiling the chloroplasts will break them. Thus they will not be able to do the Hill reaction, as they will not have an intact membrane upon which to build up a pH gradient.
What is the electrochemical gradient of an ion?
spatial variation of both electrical potential and chemical concentration across a membrane. Both components are often due to ion gradients, particularly proton gradients, and the result can be a type of potential energy available for work in a cell
How can add gradient effect to any layer in flash?
Use a flash maker software it has gradient effect option in it
What effect does selecting dither have on the gradient?
Reduces banding effect.
Does salt effect the ability of ice's melting rate?
Yes, and this depends on the chemical and physical nature of the salt and also on the concentration.
How does drinking salt water affect your cell membrane?
i think you mean to ask what effect salt water has on a cell. if you were to introduce a cell into an environment that has a higher salt concentration that its own internal concentration, you would create a concentration gradient (difference). water would diffuse across the cells membrane OUT of the cell and into the external environment in a process called osmosis, in an attempt to even out the differences in concentration by diluting the outside saltier environment. the result would be a shrivelled more "dehydrated" or hypertonic cell.
What happen during the facilitated diffusion?
Facilitated diffusion occurs against the osmotic potential/concentration gradient and requires energy at the expense of the ATP hydrolysis. There are several way in which this diffusion could occur in the cells. The first one being the ion exchangers. The ion exchangers are coupled with ATPase activity and they exchange ion(s) across the membrane. The most classical example of ion exchanger is the Na+/K+ ion exchanger and Ca+ ATPase. Other way of the facilitated diffusion in the ion channel. These could be voltage gated channel that open in response to the change in the membrane potential and the other being ligand gated channel that operate under the effect of ligand binding.
What effect does potassium have on the resting potential of a cardiac cell?
Hyperkalemia is an increase in extracellular K. Driving force of an ion depends on two factors, voltage and concentration gradient. For K voltage gradient is pushing K into the cell but the concentration gradient is driving K out of the cell. However, the total driving force for K is out of the cell because the concentration gradient is that strong. When there is an increase in K on the outside, the driving force for K decreases.The equilibrium potential for K is -95mV. This means if K was freely permeable to the cell's membrane, it would reach equilibrium at -95mV. Another way to look at this is that efflux of K is the same as influx of K and the cell's new resting membrane potential would increase from a normal value of -70mV to -95mV. Note that I said it would increase even though the value became more negative. This is because the change in membrane potential has increased.Since the driving force of K has decreased, the equilibrium potential has also decreased. From a value of -95mV it is decreased to let's just say -80mV. Since a normal resting membrane potential is regularly -70mV, the decrease in equilibrium potential of K has decreased this resting membrane potential to say -60mV now. This is a depolarization of the cell.If this process happens quickly, it will depolarize the cell to the threshold value and you will have an action potential. However, if the hyperkalemia is severe, the cell will stay depolarized because the K equilibrium has decreased to a point where the cell cannot hyperpolarize back to threshold or resting membrane potential.If this process happens slowly, the inactivation gates of the sodium voltage-gated channels will automatically shut and the cell cannot depolarize even if it reaches threshold values. It must hyperpolarize back to resting membrane potential and the inactivation gates of the sodium voltage-gated channel will reopen.
Does hunger effect the ability of concentration?
Yes, it does, if your body is requiring protein or carbs then your mind cannot think properly. You become tired.
Does physical exercise have a negative effect on the ammount of information retained by a student?
No, on the contrary. There's plenty of evidence that physical fitness help with concentration and learning ability.
