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they need to control the amount going in and out
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∙ 15y ago
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Cell Membranes are contructed mainly of?
Cell membranes are made of a phospholipid bilayer.
Are lipid bilayers self sealing?
yes
Why Lipid bilayers form spontaneously?
The process is exergonic
What are the two most important characteristics of the lipid bilayers found in cell membranes?
Lipid bilayers are important because of their impermeability by water solutions and their regulation of ion intake into the cell.
A lipid bilayer is characteristic of all membranes?
A lipid bilayer is characteristic of all biological membranes. Some membranes are double bilayers.
Cell Membranes are contructed mainly of?
Cell membranes are made of a phospholipid bilayer.
What are cell membranes constructed of?
Lipid Bilayers
Are lipid bilayers self sealing?
yes
Cell membranes are constucted mainly of?
lipid bilayers
Why Lipid bilayers form spontaneously?
The process is exergonic
What are the two most important characteristics of the lipid bilayers found in cell membranes?
Lipid bilayers are important because of their impermeability by water solutions and their regulation of ion intake into the cell.
What stuctural features of the plasma membrane contribute to its semipermeability?
lipid bilayers
A lipid bilayer is characteristic of all membranes?
A lipid bilayer is characteristic of all biological membranes. Some membranes are double bilayers.
What is another name for the phospholipid bilayer?
It depends on which lipid bilayer you're talking about. There is the phospholipid bilayer that surrounds eukaryotic cells, cholesterol phospholipid bilayers, protein lipid bilayers, phase transition lipid bilayer, lipid bilayer membrane...
Why is the skin permeable to organic solvents?
Because they can dissolve the lipid bilayers of epidermal and dermal cell plasma membranes.
What increases the strength of the hydrophobic interactions in lipid bilayers and thus makes them less permeable to polar molecules?
increasing the length of hydrocarbon tails
What type of lipid molecules do membranes consist of?
Phopholipids - They have a hydrophillic head that is positioned to the inside of the cell and the outside environment. They also have hydrophobic tails that point towards each other inside the membrane. This is why cell membranes are referred to as lipid bilayers. They are 2 layers of phospholipids organzied by their interaction with water.
