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Using an example explain what is meant by a partially permeable membrane?
Wiki User
∙ 10y ago
A membrane that allows some things to pass through it but not others. It can be to do with size of the molecule, electronic charge or other characteristics. Think of a sieve or colander as an example of the semi-permeable membrane and a mixture of sand and peas as the chemical mixture at one side of the membrane. The membrane will only allow the sand to pass through based on size. In cases such as this, larger molecules could pass through active transport channels and such that may be present on the membrane but these are energy-dependant whereas diffusion across a semi-permeable membrane is not.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoa partially permeable membrane allows some molecules or ions to pass through it
Jeffrey Danggun
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∙ 8y agoIt allows only certain molecules to pass through.
Wiki User
∙ 13y agopartially-permeable membrane is a membrane that will allow certain molecules or ions to pass through it, but not all molecules and ions (e.g Cell Surface membrane)
Wiki User
∙ 11y agoPartically permeable means that when a membrane of a cell does not allow everything to pass through it and not others...
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∙ 10y agowebsite sucks
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What are two main components of cellular membranes?
Partially permeable , permeable , immpermeable .
If a cell membrane suddenly became permeable to all substances could the cell remain alive Explain your answer?
yes a cell could remain alive but in that case FBGM
How does Oxygen cross cell membrane?
Oxygen and water molecules can penetrate the cell membrane due to small gaps that are created by the lipid molecules. Lipid molecules overlap each other which makes the gaps. The oxygen and water molecules then enter in the gaps. The cell membrane in this case is semi permeable.
What is osmosis in biology?
It is the preceedure in which an atom reproduces with the cell membrane creating a semi-universe in which time and space has no baring. Withing this new dimension species will then begin to grow until they have reached an evolution so great the find the abbility to leave there univers and attack ours, thus the creation of flies. i hope this has helped.Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.The definition contains three important statements:Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.It does not matter too much which order you put these statements in. Nor does it matter if you write the definition as one sentence or three sentences. All that matters in your exam is that you make all three points when you explain what osmosis is.
What physical property of the dialysis tubing might explain its differential permeability?
Dialysis tubing is an impermeable membrane/containment vessel that is stratified with microscopic holes which restrict certain molecules or particles from diffusing through them. This leads dialysis tubing to serve as a selectively permeable membrane because it selectively prevents certain molecules from crossing the membrane based on the size of the molecules. (Typically water and glucose will diffuse through, whereas starch and potassium iodide will not.
What are two main components of cellular membranes?
Partially permeable , permeable , immpermeable .
What is cell membrane explain in urdu?
plasma membrane is the outer most boundary of animal cell.it is chemically composed of lipids and proteins.it is selectively permeable allow certain materials to move in and out.fluid mosaic modle explain its structure.
If a cell membrane suddenly became permeable to all substances could the cell remain alive Explain your answer?
yes a cell could remain alive but in that case FBGM
Why the line-with-gaps model is sufficient to explain the movement of materials in osmosis?
Because it is a differentially permeable membrane so water can fit through but no other large molecules can. it is a passive process. :)
How do you explain the entrance and exit of materials in a cell?
Materials can enter and exit cells in multiple ways. There is the process of osmosis, where water particles move through the partially permeable membrane in the cell wall to a higher concentration gradient - this does not require energy. There is also diffusion, where particles small enough to fit through the partially permeable membrane move down a concentration gradient - this also does not require energy. And then there is active transport, where the cell wall can actually move particles into the concentration gradient they would not naturally move to, and this does require energy. Hope I helped :)
A model cell half full of an aqueous solution of glucose with a membrane that is permeable to glucose is placed into a beaker of distilled water Explain what is likely to happen?
do you go to UTAS? that is not an answer how is this going to help people ????
What is the solubility theory of membrane permeability?
the solubility theory of membrane permeability simply describes that a membrane can only be freely permeable to substances that can dissolve in it. this was the most basic theory posed to explain how substances passed through membranes of cells. another way of explaining this is that substances that can freely or passively diffuse across membranes when they have the same chemical or physical properties as the membrane.
How does Oxygen cross cell membrane?
Oxygen and water molecules can penetrate the cell membrane due to small gaps that are created by the lipid molecules. Lipid molecules overlap each other which makes the gaps. The oxygen and water molecules then enter in the gaps. The cell membrane in this case is semi permeable.
What model is used to explain the componets and properties of plasma membrane?
The model used to explain the components and properties of the plasma membrane is called the fluid mosaic.
Explain How oxygen is obtained by animals and then used by animals and then used during cellular respiration?
Diffusion, which is the process of gas transfer, for example, a muscle cell has used the oxygen given to it by the blood cells, another blood cell will carry more oxygen to the cell, and the Co2 and O2 will pass through a semi-permeable membrane (the cell) and transfer the oxygen to the animal.
What is osmosis in biology?
It is the preceedure in which an atom reproduces with the cell membrane creating a semi-universe in which time and space has no baring. Withing this new dimension species will then begin to grow until they have reached an evolution so great the find the abbility to leave there univers and attack ours, thus the creation of flies. i hope this has helped.Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.The definition contains three important statements:Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.It does not matter too much which order you put these statements in. Nor does it matter if you write the definition as one sentence or three sentences. All that matters in your exam is that you make all three points when you explain what osmosis is.
What physical property of the dialysis tubing might explain its differential permeability?
Dialysis tubing is an impermeable membrane/containment vessel that is stratified with microscopic holes which restrict certain molecules or particles from diffusing through them. This leads dialysis tubing to serve as a selectively permeable membrane because it selectively prevents certain molecules from crossing the membrane based on the size of the molecules. (Typically water and glucose will diffuse through, whereas starch and potassium iodide will not.
