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What is the name of the fluid phospholipid bilayer which determines what materials enter and exit the cell?
Wiki User
∙ 9y ago
That is the name. Unless you have another name in mind. Sometimes it is called the fluid mosaic model or the cell membrane.
Wiki User
∙ 9y ago
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How does lipid solubility affect the ability of substances entering a cell?
If the substance is not lipid soluble, it will not be able to pass through the cell membrane, which is a phospholipid bilayer. This means it will not be able to enter the cell.
Do most materials enter the cell through the proteins or phospholipids?
It uses both.Materials enter through phospholipid bilayers as water molecules are often small enough to pass through them even though water molecules are polar.However osmosis also uses channel proteins to diffuse at a quicker rate as facilitated diffusion though the bilayer takes longer.
What determines how quickly materials enter and leave a cell?
Glucose concentration
What does the lipid bilayer molecules do?
The lipid bilayer that forms the cellular membrane forms an effective semi-permeable membrane. The lipid bilayer typically can typically exclude larger molecules based on size (molecular weight) and other molecules based on charge (ions and salts).
The plasma membrance of a cell consists of?
The plasma membrane consists of a phospholipid bilayer that contains proteins. There are four types of proteins in the plasma membrane - structural protein, receptor protein, transport protein and glycoprotien.
What types of materials can enter the cell?
small molecules through the integral proteins in the phospholipid bilayer
How is membrane structure related to the transport of materials?
Membrane is thin and Êsemi permeable to allow Êmaterials to enter and exit easily. In addition, it Êconsist Êof protein Êand phospholipid bilayer, Êprotein layer release ÊproteinÊÊmolecules which act as carriers across the membrane.Ê Whereas, phospholipid bilayer Êallow small molecules such as water molecules to pass through quicker.
What chemical substance allows other chemicals substances to enter or exit cells?
This question refers to the phospholipid bilayer of cells. This cell has a molecular structure allowing for part of it to be hydrophobic and hydrophilic.
How does lipid solubility affect the ability of substances entering a cell?
If the substance is not lipid soluble, it will not be able to pass through the cell membrane, which is a phospholipid bilayer. This means it will not be able to enter the cell.
Do most materials enter the cell through the proteins or phospholipids?
It uses both.Materials enter through phospholipid bilayers as water molecules are often small enough to pass through them even though water molecules are polar.However osmosis also uses channel proteins to diffuse at a quicker rate as facilitated diffusion though the bilayer takes longer.
How does salts enter the cell?
Salts are soluble. The phospholipid bilayer membrane of cell walls are permeable to water and thus allow water and water-soluble substances, like salts, diffuse through.
What makes up the selectively premeable membrane that controls which molecules enter and leave the cell?
A cell's membrane is made up of a phospholipid bilayer which has several protein channels and various other transport mechanisms built in.
What determines how quickly materials enter and leave a cell?
Glucose concentration
Lipid-soluble materials enter and exit the cell via?
Phospholipids permit lipid-soluble materials to easily enter or leave the cell by diffusion through the cell membrane. Phospholipids form a bilayer or double layer which makes up most of the membrane.
How do cell's hormones enter?
They simply pass through the cell membrane of the targeted cell. This is possible because steroid hormones are fat-soluble, and the fluid mosaic ( phospholipid bilayer ) prevents fat-insoluble molecules from diffusing into the cell.
What does the lipid bilayer molecules do?
The lipid bilayer that forms the cellular membrane forms an effective semi-permeable membrane. The lipid bilayer typically can typically exclude larger molecules based on size (molecular weight) and other molecules based on charge (ions and salts).
Why would the body use facilitated diffusion to move the amino acids instead of diffusion?
Amino acids are too polar and too big to diffuse through the highly impermeable phospholipid bilayer. A special transport system must be set up to allow them to enter the cell.
