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Water freely moves through a phospholipid bilayer Why is this unexpected?
Wiki User
∙ 15y ago
It moves through the bilayer via channels. These channels often are for transfer through the bilayer for other chemicals (sodium, potassium, etc) but also allow water to flow through readily. It is unexpected because water is hydrophilic (obviously- all charged molecules are). The phosphate part of the bilayer can bind with water, but the lipid on the inside of the bilayer acts like a layer of oil on the surface of the water- water cannot pass through the hydrophobic lipid.
Wiki User
∙ 15y ago
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Charges can not move freely through?
Insulators.
Materials that allow the charges of an electric current to move freely through them are called what?
A materiel that allows an electric charge to pass through it is an conducter (copper, for example)
How do you use freely in a sentence?
Now that the stalker has been apprehended, the whole neighborhood can breathe freely.
What are the characteristics of an open closed and isolated system?
open: matter and energy can pass freely in and out closed: only energy can pass freely isolated: nothing can pass freely
Who gives freely?
The charitable do.
Do all substances pass freely between the intracellular and extracellular fluids through a phospholipid bilayer?
No, the membrane is known as semi-permeable because some substances (such as water) can pass freely through - whereas others (such as ions) cannot.
What can you conclude about the advantage of the cell membrane having hydrophobic ends in the phospholipid bilayer?
Well it prevents polar molecules from passing through freely, giving the membrane its semi-permeable properties.
A molecule that can diffuse freely through a phospholipid bilayer is probably?
By Passive transport i can onlythink of glucose, but by active transport material like water, carbon dioxide, amino acids, sodium and potasium and of course oxygen! :)
What can pass through the bilayer with ease?
Molecules that are not polar or ion molecules. That is because they won't be stopped by the hydrophobic tails and they will have the acknowledgement to pass through the cell membrane thanks to little resistance. This makes those molecules have an advantage.
The fluid mosaic model describes a structure with?
According to the fluid mosaic model, our cell membrane is a double membrane of phospho lipid molecules. Proteins are embedded in this layer. Cholesterol is also an important compone of this membrane.
What protein floats in the cell membrane and receives hormonal signals sent from other cells?
Integral Proteins float freely within the bilayer of the cell membrane. They are usually transmembrane proteins, extending through the lipid bilayer. One end is in contact with the interior of the cell while the other remains in contact with the exterior. These are the only proteins that can perform functions both inside and outside the cell.
What substance can freely pass through the cell membranes?
Certain steroid hormones, cholesterol for example, can pass through the plasma membrane of the cell. Ions cannot pass through the plasma membrane but requires a channel protein. All cells in our body has phospholipid bilayer plasma membrane.
Definition of freely permeable membrane?
freely permiable membrane allows everything to pass through.
Charges can not move freely through?
Insulators.
What Substances that can freely dissolve through the plasma membrane are made of?
Substances that can freely pass through the plasma membrane must be small and non-polar.
Literary device the seals swam freely through the icy sea?
The literary device that seals swam freely through the icy sea is assonance.
What does not freely diffuse through the plasma membrane?
glucose
