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What would happen if the membrane of nucleus become permeable to most substances?
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∙ 7y ago
The Nucleus would be damaged. Apex
Zahraa Al Jawadi
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What would happen if the membranes of a nucleus became permeable to most substances?
The nucleus would be damaged.
Binding of the neurotransmitters with muscle membrane to become permeable to sodium and sodium ions is?
synapses
Why does the polarity of a cell membrane reverse during an action potential?
During an action potential the neuron receives a stimulus causing the cell membrane to become more permeable to sodium than potassium, calling the polarity to change.
What is the four functions of cell or plasma membrane?
Functions of cell membrane or plasma membrane are-Shape-It provides definite shape to semifluid contents of the cell.Mechanical barrier-It functions as a mechanical barrier that protects the internal contents of the cell.Selectively Permeability-It is a selectively permeable membrane and allows entry of certain substances.Endocytosis-The flexibility of the membrane enables the cell to engulf food and other substances from its external environment by endocytosis. Amoeba acquires its food b this process.Recognition-It has substances over its surface which function as recognition centers and points of attachments. They help in tissue formation, distinction of foreign substances and defence against microbes.Flow of Information-It provides flow of information among different cells of the same organismOsmosis-It occurs due to the presence of tiny water channels in the plasma membrane.Cell Continuity-At places plasma membrane of adjacent cells become continuos to form plasmodesmata and cell junctions.Specialisation-Plasma Membrane gets modified to perform different functions like absorption in microvilli.
What happens when a ligand gated channel is stimulated?
When a ligand-gated channel is stimulated, there is movement toward the extracellular side of the cell membrane. This allows the channel to become permeable to different ions.
What would happen if the membrane of nucleus became permeable to most substance?
The nucleus would be damaged.
What would happen if the membranes of a nucleus became permeable to most substances?
The nucleus would be damaged.
The combining of the neurotransmitter with the muscle membrane receptors causes the membrane to become permeable to sodium ions and blank of the membrane?
Depolarization
Binding of the neurotransmitters with muscle membrane to become permeable to sodium and sodium ions is?
synapses
Binding of the neurotransmitters with muscle membrane receptors causes the membrane to become permeable to sodium resulting in the influx of sodium ions an what of the membrane?
depolarization
When hinding of the neurotransmitters with muscle membrane receptors causes the membrane to become permeable to sodium resulting in the influx of sodium ions and what membrane?
action potential of the sarcolemma(the membrane)
Two liquids are sepertated by a membrane that is not permeable one liquid has a high concentration of salt the other liquid is plain water you can expect?
If the membrane is not permeable to either sodium and chloride ions or water then the concentrations of the liquids would remain the same. However, if the membrane was permeable to water or the ions then the plain water would become more salty while the salty water would become more dilute (due diffusion/osmosis, depending on the membrane's permeability).
If the pacemaker cells in the SA node become more permeable to potassium ions the?
Both the heart rate will decrease and the membrane will hyperpolarize
What would happen to an organism if its cell membranes became permeable to most substance?
it would die as harmful substances entered the cells. (APEX)
Why does the polarity of a cell membrane reverse during an action potential?
During an action potential the neuron receives a stimulus causing the cell membrane to become more permeable to sodium than potassium, calling the polarity to change.
How would you describe the state of equlibrium?
The state of equilibrium exists where the concentration of a substance is able to become even on both sides of a barrier, which is usually some semi permeable membrane.
What is the four functions of cell or plasma membrane?
Functions of cell membrane or plasma membrane are-Shape-It provides definite shape to semifluid contents of the cell.Mechanical barrier-It functions as a mechanical barrier that protects the internal contents of the cell.Selectively Permeability-It is a selectively permeable membrane and allows entry of certain substances.Endocytosis-The flexibility of the membrane enables the cell to engulf food and other substances from its external environment by endocytosis. Amoeba acquires its food b this process.Recognition-It has substances over its surface which function as recognition centers and points of attachments. They help in tissue formation, distinction of foreign substances and defence against microbes.Flow of Information-It provides flow of information among different cells of the same organismOsmosis-It occurs due to the presence of tiny water channels in the plasma membrane.Cell Continuity-At places plasma membrane of adjacent cells become continuos to form plasmodesmata and cell junctions.Specialisation-Plasma Membrane gets modified to perform different functions like absorption in microvilli.
