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What would happen if the membrane of nucleus become permeable to most substances?
The Nucleus would be damaged. Apex
What is the effect of heat on beetroot?
Heat causes the cell membrane of beetroot cells to become more permeable, leading to the release of red pigment (betacyanin) into the surrounding environment. This results in the characteristic color change of beetroot from red to a lighter pink or yellow when heated.
Why does the polarity of a cell membrane reverse during an action potential?
The reversal of polarity during an action potential is due to the changes in ion concentrations across the cell membrane. When the membrane depolarizes, sodium ions rush into the cell and make the inside more positive. Repolarization occurs when potassium ions leave the cell, bringing the membrane potential back to negative.
What will a chamber separated by a semi-permeable membrane with one side containing a mixture of molecules in water and the other side containing only water contain after an extended period of time?
The water will move from the side with a higher concentration of water to the side with lower concentration of water through osmosis, resulting in dilution of the mixture. The side with the mixture will become more diluted over time, while the side with only water will become more concentrated with the molecules from the mixture.
Does the neuron respond to all impulses?
Yes a neuron will always respond to the binding of neurotransmitters released from another cell (synaptic transmission being the 'impulse'). Depending on which neurotransmitter was bound, the postsynaptic potential of the membrane will become either more positive or more negative. It is the summation of these inputs and membrane potentials that determine whether the cell will subsequently fire an action potential.
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)
The combining of the neurotransmitter with the muscle membrane receptors causes the membrane to become permeable to sodium ions and blank of the membrane?
The combining of the neurotransmitter with the muscle membrane receptors causes the membrane to become permeable to sodium ions and depolarization of the membrane. This depolarization triggers an action potential that leads to muscle contraction.
What would happen if the membrane of nucleus become permeable to most substances?
The Nucleus would be damaged. Apex
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).
What would happen if the membrane of nucleus became permeable to most substance?
The nucleus would be damaged.
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 is the effect of heat on beetroot?
Heat causes the cell membrane of beetroot cells to become more permeable, leading to the release of red pigment (betacyanin) into the surrounding environment. This results in the characteristic color change of beetroot from red to a lighter pink or yellow when heated.
Explain what happens to neurotransmitters after they are released?
After neurotransmitters are released in to the synaptic cleft - from the presynaptic neuron, they bind with there specific receptor cites found on the postsynaptic neurons cell membrane. Some neurotransmitters then become inactive by enzymes whiles other simply drift away from the synaptic cleft. Reuptake can also occur where the presynaptic neuron sponges up (or takes back) the remaining neurotransmitters left behind.
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.
Did the constitution become binding when it was signed at the constitutional convention?
When 9 States had ratified it. when did the constitution become binding?
What is the call membrane?
Nephrons are the basic functional unit of the kidneys. They take in blood through an afferent arteriole and filter it inside the Bowman's capsule in a series of capillaries called glomeruli. It is the walls of the glomeruli that contain the membrane, more accurately called semi-permeable membrane, that removed the serum from the blood to produce the filtrate that will eventually become urine.
