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The "head" of the membrane, the phosphate.
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∙ 11y ago
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The polar end of the phospholipid plasma membrane is . hydrophilic hydrophobic?
"philic" ( likes water)
Is the polar end of the phospholipid plasma membrane hydrophobic or hydrophilic?
A polar molecule is hydrophilic, which means that it will easily dissolve in water. Examples of hydrophilic molecules are sugars and salts.
What molecules add support to plasma membrane?
The intrinsic properties of the hydrophilic/hydrophobic/hydrophilic double layer of the membrane gives it support, due to the hydrophobic effect.
What makes it possible for the plasma membrane to self assemble?
The plasma membrane is able to self-assemble due to the properties of its constituent molecules, such as phospholipids. Phospholipids have hydrophilic heads and hydrophobic tails, which drives them to form a bilayer structure when exposed to water. This spontaneous assembly is driven by the hydrophobic effect and results in the formation of a stable and selectively permeable membrane.
Three major parts of the cell membrane?
The parts of the plasma membrane (I am assuming that you are referring to the plasma membrane) are hydrophilic (water-loving) heads, hydrophobic (water-hating) tails, cholesterol, carb chains, and integral proteins. The plasma membrane is known to be fluid-mosaic, meaning that its motion is wave-like. The hydrophilic head is located on the very outside of the plasma membrane and the inside of the cell. The hydrophobic tails are located in between the two hydrophilic heads. The cholestrol is located inside the plasma membrane to not allow the tails to be tangled. Carb chains are located outside of the plasma membrane (along with hydrophilic heads) and is there for chemical ID of the cell. Integral proteins are also located outside the plasma membrane; its function to shape materials needed inside the cell to a certain shape (diffusion). hydrophilic head-> OO <- hydrophilic head hydrophobic tails---------^
What is the difference between diffusion of hydrophobic substances in comparison to hydrophilic ones across the plasma membrane?
the hydrophilic easier than hydrophobic substances
Which molecule has hydrophilic and hydrophobic properties and would be found in plasma membranes?
That would be phospholipids. They are a major component of the plasma membrane and contain hydrophilic, as well as, hydrophobic properties.
What are the molecules in the plasma membrane made of?
phospholipids are the molecules that make up the plasma membrane and they are made of polar (hydrophilic) heads and 2 non-polar (hydrophobic) tails
What is the structure of a plasma membrane and what is the role of their hydrophilic heads?
That is the structure of plasma membrane adjectent or near the secondary cell wall in a cells. It's a living outermost boundary of all the cells.
What is the Trilaminar unit membrane structure?
It is the plasma membrane of a cell. The plasma membrane is a phospolipid bilayer, but because the phospsolipids are amphipathic, and because the lipid tails of each are turned into one another it is considered a trilamina. Hydrophilic Head of the inner layer + lipid tails of each layer + Hydrophilic Head of the outer layer.
What indicates how easy it is for a substance to cross the plasma membrane?
Whether it's charged or not, hydrophilic, hydrophobic and its size.
What molecules are on the outer surface of the plasma membrane?
The outside surface of the plasma membrane is made of a layer of molecules called phospholipids, which have hydrophobic and a hydrophilic parts. The hydrophilic parts are on the outside surface, attracted by the water and other hydrophilic molecules outside the cell. There are also proteins of various kinds attached to and embedded in this outer layer.
