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Cannot not find the specific answer but it is one of these...
A. By passive transport directly across the membrane
B. by active transport directly across the membrane
C. through integral transport proteins
Wiki User
∙ 11y ago
Wiki User
∙ 10y agoi reaally dont thats y im asking to
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How are diffusion and facilitated diffusion diffrent?
Diffusion directly passes through the cell membrane unaffected by the hydrophobic part of the membrane. Facilitated diffusion uses proteins to assist in the movement of molecules. Ions have trouble moving through the hydrophobic part of the membrane.
Explain how hydrophobic molecules cross cell membranes?
cell membranes are made of a lipid bilayer, molecules with hydrophilic heads and hydrophobic tails. These molecules arrange in parallel lines with the tails facing inwards towards each other and the heads facing outwards towards the water. Hydrophobic molecules are drawn into the lipid bilayer, trying to get away from the water.
The fact that lipids move easily through cell membranes is due to?
their hydrophobic nature and the fluidity of cell membranes. Lipids have a non-polar "tail" region that is attracted to other non-polar molecules, including the hydrophobic interior of the cell membrane. This allows lipids to move easily through the cell membrane, making it an important characteristic for various cellular processes.
Facilitated diffusion moves large molecules through what?
Glucose and polypeptides.
Hydrophobic layer of the cell membrane?
Plasma membrane is made of two layer of phospholipids. The outer layer is hydrophilic while inside the membrane is hydrophobic therefore plasma membrane is not a hydrophobic barrier -it regulates what enters and leave the cell.
Describe how the diffusion of ions across a cell membrane differs from the diffusion of nonpolar molecules across the cell membrane?
Ions need to be facilitated through a cell membrane because they are passing through a phospholipid bilayer with a hydrophobic interior. Non polar molecules are also hydrophobic, so they can pass through the membrane easily if they are small enough. Ions are polar, so they have a hard time passing through membranes.
How are diffusion and facilitated diffusion diffrent?
Diffusion directly passes through the cell membrane unaffected by the hydrophobic part of the membrane. Facilitated diffusion uses proteins to assist in the movement of molecules. Ions have trouble moving through the hydrophobic part of the membrane.
Explain how hydrophobic molecules cross cell membranes?
cell membranes are made of a lipid bilayer, molecules with hydrophilic heads and hydrophobic tails. These molecules arrange in parallel lines with the tails facing inwards towards each other and the heads facing outwards towards the water. Hydrophobic molecules are drawn into the lipid bilayer, trying to get away from the water.
What characteristic of cell membrane allows some substances to pass through them but not others?
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What helps molecules through the cell membrane?
Your Vagina
Is The hydrophobic part of a cell membrane is on the inside of the phospholipid bilayer?
hydrophobic
What is the outer layer in animal cells called?
the cell membrane. It is a protein mosaic this is hydrophobic on both sides and hydrophllic in the center.
What force pushes the cell membrane up against the cell wall?
what force pushes a cell membrane against a cell wall
The fact that lipids move easily through cell membranes is due to?
their hydrophobic nature and the fluidity of cell membranes. Lipids have a non-polar "tail" region that is attracted to other non-polar molecules, including the hydrophobic interior of the cell membrane. This allows lipids to move easily through the cell membrane, making it an important characteristic for various cellular processes.
Why cant polar molecules and ions diffuse across the cell membrane?
Ions cannot diffuse through a phospholipid bilayer because they are not able to dissolve in lipids, hence the phosphoLIPID bilayer . Also, since they have an electrical charge, they are repelled by the membrane.
What helps things get through the cell membrane?
Acids and chemicals
How does CO2 cross the cell membrane?
No, carbon dioxide does not need a transport protein to cross the cell membrane. It can pass through a membrane by diffusion.
