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Does altering the permeability of the membrane change the equilibrium concentration of the solute in the cell?
Wiki User
∙ 10y ago
yes
Wiki User
∙ 10y ago
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Does increasing membrane permeability affect the time it takes for the osmometer to reach equilibrium?
It should. The permeability of a membrane defines how fast substances move across a membrane from a high concentration environment to the lower concentration environment. The more permeable the membrane the sooner equilibrium is reached when the concentrations on both side are the same.
What does the difference in the K and Na concentration on either side of the plasma membrane and permeability of the membrane to those ions generate?
resting membrane potential
What are facts about permeability?
Changes in permeability are changes in the number of compounds that can pass through a membrane. The presence of certain chemicals or radiation can change the permeability of a membrane.
What Hyperpolarizing membrane potential occurs in the postsynaptic membrane of a synapse?
Hyperpolarization means that the membrane potential becames more negative than the resting potential. This means that it is more difficult for an action potential to be triggered at the postsynaptic membrane. This occurs at inhibitory synapses. Hyperpolarization can be achieved by increasing the permeability of the membrane to potassium or chloride ions. If potassium permeability is increased more potassium ions will leave the cell, down their concentration gradient; if chloride permeability increases chloride ions will enter the cell down their concentration gradient. Both movements will make the inside of the cell more negative ie they will cause hyperpolarization.
What is the ability of a cell membrane to allow material to pass through it called?
permeability
Does increasing membrane permeability affect the time it takes for the osmometer to reach equilibrium?
It should. The permeability of a membrane defines how fast substances move across a membrane from a high concentration environment to the lower concentration environment. The more permeable the membrane the sooner equilibrium is reached when the concentrations on both side are the same.
When the concentration of molecules on both sides of a membrane is the same (equilibrium) the molecules will?
reach dynamic equilibrium. Answer : move across the membrane in both directions (equilibrium).
What is an example of diffusion in a sentence?
The rate of diffusion is determined by the permeability of the membrane and the concentration gradient.
What does the difference in the K and Na concentration on either side of the plasma membrane (and permeability of the membrane to those ions) generate?
Resting membrane Potential
When the concentration of molecules on both sides of the membrane is the same the molecules will?
reach dynamic equilibrium. Answer : move across the membrane in both directions (equilibrium).
What feature of a membrane describes whether molecules can cross the membrane?
permeabiity
What does the difference in the K and Na concentration on either side of the plasma membrane and permeability of the membrane to those ions generate?
resting membrane potential
What is it called when the concentration of water molecules is the same on each side of the cell membrane?
Equilibrium
What is it called when the concentration of water molecules is the same on each side of cell membrane?
Equilibrium
What can differential permeability also be described as?
Differential permeability can be described as phenomenon where a differential permeable membrane through different diffusion processes allows smaller molecules/ions as glucose, sodium and chlorine to diffuse out while macromolecules as starch to remain behind until an equilibrium is reached, where concentration of smaller molecules/ions equals on both sides of the differential membrane.Differential permeability can also be described as Dialysis.
When the molecules on both sides of a cell membrane are in equilibrium what will the molecules do?
If the concentration of molecules on both sides of a membrane is the same, nothing will happen to the molecules. Osmosis only occurs when there is an imbalance of the molecules across the cell membrane.
What are facts about permeability?
Changes in permeability are changes in the number of compounds that can pass through a membrane. The presence of certain chemicals or radiation can change the permeability of a membrane.
