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What affect does elevated extracellular chloride have on the resting membrane potential of a neuron?
Mollysavageastoria
Not much. Changing the extracellular chloride changes the level inside the cell so they will be in equilibrium again. The chloride ion plays little role in resting potential.
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∙ 9y ago
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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.
The electrical resistance across a living cell membrane is very high because of proteins carbohydrates water lipids in the above 4 which one is correct?
In short, the correct answer is "lipids"Membrane potential (or transmembrane potential) is the difference in voltage (or electrical potential difference) between the interior and exterior of a cell (Vinterior − Vexterior). All animal cells are surrounded by a plasma membrane composed of a lipid bi-layer with many diverse protein assemblages embedded in it. The fluid on both sides of the membrane contains high concentrations of mobile ions, of which sodium (Na+), potassium (K+), chloride (Cl-), and calcium (Ca2+) are the most important. The membrane potential arises from the interaction of ion channels and ion pumps embedded in the membrane, which maintain different ion concentrations on the intracellular and extracellular sides of the membrane.
Extracellular membrane receptors are used by which types of hormones?
eicosanoids
Cells are often bound to the extracellular matrix by in the plasma membrane?
protiens
How do cells use membrane proteins?
extracellular signaling is one example
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.
The electrical resistance across a living cell membrane is very high because of proteins carbohydrates water lipids in the above 4 which one is correct?
In short, the correct answer is "lipids"Membrane potential (or transmembrane potential) is the difference in voltage (or electrical potential difference) between the interior and exterior of a cell (Vinterior − Vexterior). All animal cells are surrounded by a plasma membrane composed of a lipid bi-layer with many diverse protein assemblages embedded in it. The fluid on both sides of the membrane contains high concentrations of mobile ions, of which sodium (Na+), potassium (K+), chloride (Cl-), and calcium (Ca2+) are the most important. The membrane potential arises from the interaction of ion channels and ion pumps embedded in the membrane, which maintain different ion concentrations on the intracellular and extracellular sides of the membrane.
What are cells often bound to the extracellular matrix by?
The cells are often bound to the extracellular matrix by proteins in the plasma membrane. The extracellular matrix is the structural support of tissue.
Extracellular membrane receptors are used by which types of hormones?
eicosanoids
What separates the intracellular and extracellular fluid compartments?
The barrier that separates the interstitial fluid from the intracellular fluid is the plasma membrane. The interstitial fluid is a major component of the extracellular fluid.
Does cholesterol adhere to the extracellular surface of animal cell plasma membrane?
No it does not.
Cells are often bound to the extracellular matrix by in the plasma membrane?
protiens
How do cells use membrane proteins?
extracellular signaling is one example
Where is the cell membrane loctated in a animal cell?
Cell membrane is the outer barrier of cell which seperates it from the extracellular matrix.
The fact that a cell has an electrical potential difference across its membrane makes that cell what?
The cell membrane is semi-permeable so that charged ions can not diffuse down or up a concentration cell into or out of the cell. There are cell bound proteins that transport charged ions like K+, Na+ and Ca2+ across the cell membrane and the net effect is that the cell is negatively charged ( about -70 mV) with respect to the extracellular space.
The Intake of small membrane vesicles from the extracellular fluid is called?
exocytosis
Electrical charge resulting from the difference between positive and negative ions outside and inside the brain cell membrane is called?
Membrane potential
