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When a neuron is in its resting potential state the axon selectively permeable membrane maintains which polarities?
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What is the process in which water diffuses through a selectively permeable membrane is called?
Osmosis is the net movement of water across a partially permeable membrane from a region of high solvent potential to an area of low solvent potential, up a solute concentration gradient.
Through the membrane of a resting neuron highly permeable to potassium ions its membrane potential does not exactly match the equilibrium potential for potassium because the neuronal membrane is?
Slightly permeable to sodium ions.
What is plasmolysis and why is it important to plant cells?
Plasmolysis refers to the contraction of the protoplast of a plant cell as a result of loss of water from the cell. The plasma membrane moves away from the cell wall due to loss of water through osmosis. Osmosis on its part, is the movement of water molecules from a region of high water potential to a region of lower water potential through selectively permeable membrane.
Does A neuron expends energy while it maintains a resting potential?
yes it does
If the axolemma becomes more permeable to potassium ion?
a stronger stimulus will be required to cause an action potential
Osmosis always involves what?
Osmosis refers to the flow of water along the water potential through a selectively/differentially permeable membrane/tubing due to a difference in water potential. Thus, it always involves 1) a selectively/differentially permeable membrane 2) difference in water potential(related to concentration gradient) 3)flow of water.
What is the scientific definition of osmosis?
Osmosis is the movement of water molecules through a selectively-permeable membrane down a water potential gradient.
How does osmosis is differ from reverse osmosis?
1) Osmosis refers to the flow of water along the water potential through a selectively/differentially permeable membrane/tubing due to a difference in water potential. Reverse osmosis refers to the flow of water against the water potential through a selectively/differentially permeable membrane/tubing due to energy gained from the surroundings or an increase in pressure.
HOW REVERSE OSMOSIS IS DIFFERENT FROM OSMOSIS?
1) Osmosis refers to the flow of water along the water potential through a selectively/differentially permeable membrane/tubing due to a difference in water potential. Reverse osmosis refers to the flow of water against the water potential through a selectively/differentially permeable membrane/tubing due to energy gained from the surroundings or an increase in pressure.
What is the process in which water diffuses through a selectively permeable membrane is called?
Osmosis is the net movement of water across a partially permeable membrane from a region of high solvent potential to an area of low solvent potential, up a solute concentration gradient.
What is osmososis?
Osmosis is the movement of water through a selectively permeable membrane down a water potential gradient. Through the osmosis, your cells can absorb water.
A simple definition for osmosis in science?
Osmosis is the mobement of water molecules from a region where they are a high water potential to a region where there is a low water potential across a selectively permeable membrane until uniformity is reached.
Does osmosis need oxygen?
Osmosis refers to the flow of water along the water potential through a selectively/differentially permeable membrane/tubing due to a difference in water potential. Thus, it does not require oxygen.
Osmosis is a type of?
Diffusion. Osmosis is the diffusion of water across a membrane.Osmosis is a special type of diffusion. It is the movement of water molecules only from a solution of higher water potential to a solution of lower water potential across a selectively permeable membrane.The characters in bold indicate the specificity of osmosis as compared to diffusion.
What is osmosis?
osmosis is a movement of a fluid that passes through a semipermable membrane
Through the membrane of a resting neuron highly permeable to potassium ions its membrane potential does not exactly match the equilibrium potential for potassium because the neuronal membrane is?
Slightly permeable to sodium ions.
What does the vacuole do in the cell of a plant?
It maintains the osmotic potential of the cell
