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Depends on what the pore does.
If they are channels - they are called Channels. Voltage gated / ligand activated channels.
If they are to communicate with neighbouring cells - they are called gap junctions.
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∙ 13y ago
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How does the membrane of the cell differ from the unclear membrane?
Nuclear pore and availability of carriers
Does the cell membrane allow all substance to pass into and out of the cell?
No only ones with smaller pore sizes
What is the role nuclear pore?
Small holes in the nuclear membrane of a cell's nucleus, which allow the transportation of water solluable materials in and out of the nucleus through the nuclear membrane.
What are other names to call a stoma?
A pore.
Which structure is a gatekeeper controlling what goes in and out of the cell?
That would be the "guard cells". The stoma is an opening on the underside of many leaves and each stoma is bordered by a pair of guard cells that open and close the pore to allow for "transpiration" (the passage of water in either gaseous or liquid form into or out of the leaf). In hot, dry weather, the guard cells close to prevent water loss. In humid weather, the guard cells allow the pore to open and water can enter.
Why are pores in a cell membrane different sizes?
The size of the membrane pores depend on the proteins constituting the pore, thus different proteins may cause different pore sizes. So in most cases, yes, the "pores" will most likely be of different sizes.
What is the nuclear pore used for?
The nuclear pores are tiny holes in the the nuclear membrane surrounding the nucleus of a cell, which allow the movement of solluable materials through the nuclear membrane, in and out of the nucleus.
Do a nucleus have a nuclear envelope?
The plasma membrane, which is the membrane surrounding the cell, is a single phospholipid bilayer. Embedded in it are proteins and other compounds, such as cholesterol.The nuclear envelope is double. This means that there are two phospholipid bilayers,with embedded proteins. In places the membranes connect, leaving a pore. This pore is important for permitting large molecules in and out of the nucleus, such as messenger RNA (mRNA) leaving the nucleus, and proteins synthesized in the cytoplasm entering for assembly into ribosomal subunits. Each pore is surrounded by proteins forming a nuclear pore complex.The outer membrane of the nuclear envelope is continuous with the rough endoplasmic reticulum.
How does insulin open pores?
Once in the blood, insulin molecules can reach all the cells of the body. An insulin molecule is able to attach itself to the cell membrane of cells. When it does, one kind of pore opens. Sugar from the blood can then enter the cell through the open pore.
Is a leaf pore a cell?
Yes, leaf pore is a cell, which is also known as stomata.
What is the channel in the nuclear membrane through which the RNA passes?
The nuclear PORE membrane
Water molecules diffuse through a selectively permeable membrane?
Water diffuses by facilitated diffusion, passing through water permeable protein channels embedded in the cell membrane. Water molecules can not pass through the lipid bilayer because water is polar. However, polar molecules pass though the cell membrane through the protein channels. The proteins that aid water in passing through the cell membrane are called aquaporins. "Aqua" for water, and "porin" for pore. A "water pore" in essence.
