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Polysaccharides cross the plasma membrane through diffusion?
Polysaccharides are too large to pass through the plasma membrane by simple diffusion. Instead, they are typically transported into or out of the cell through facilitated diffusion or active transport processes using specific carrier proteins. This allows the cell to regulate the movement of polysaccharides based on its metabolic needs.
What is cell membrane permeability?
It is the ability of the membrane to allow ions and/or particles to cross.
The viscous layer that provides protection and lubrication for the cell membrane is known as the?
The viscous layer that provides protection and lubrication for the cell membrane is known as the glycocalyx. It is composed of glycoproteins and polysaccharides that help in cell-cell recognition and protection against pathogens.
What receptor has a ligand that can cross the cell membrane that binds?
Intracellular
Which molecues cross the membrane of a cell easily and which do not?
Non-polar molecules (such as fatty acids, steroid hormones and O2) pass freely through the cell membrane. Small uncharged molecules (such as H2O) also pass freely, but are slower. Large, polar molecules and ions (such as Na+ and K+) do not pass freely. Macromolecules (such as proteins and polysaccharides) do not pass through the cell membrane. Molecules and ions that cannot pass freely through the cell membrane rely on other means, such as protein transporters, to move in to the cell.
Polysaccharides cross the plasma membrane through diffusion?
Polysaccharides are too large to pass through the plasma membrane by simple diffusion. Instead, they are typically transported into or out of the cell through facilitated diffusion or active transport processes using specific carrier proteins. This allows the cell to regulate the movement of polysaccharides based on its metabolic needs.
Can small hydrophobic molecules cross the cell membrane?
Yes, small hydrophobic molecules can cross the cell membrane.
Can nonpolar molecules cross the cell membrane?
Yes, nonpolar molecules can cross the cell membrane through simple diffusion.
What ions are positively charged and can cross back and forth across neuron and cell membrane?
There are two ions that can cross the cell membrane. The positively charged sodium and potassium ions can cross back and forth across the neuron cell membrane.
Can polar molecules cross the cell membrane?
Yes, polar molecules can cross the cell membrane through facilitated diffusion or active transport.
Can small polar molecules cross the cell membrane?
Yes, small polar molecules can cross the cell membrane through a process called passive diffusion.
What is cell membrane permeability?
It is the ability of the membrane to allow ions and/or particles to cross.
The viscous layer that provides protection and lubrication for the cell membrane is known as the?
The viscous layer that provides protection and lubrication for the cell membrane is known as the glycocalyx. It is composed of glycoproteins and polysaccharides that help in cell-cell recognition and protection against pathogens.
What receptor has a ligand that can cross the cell membrane that binds?
Intracellular
What is the cell wall of a plant?
The cell wall of a plant cell is the outer layer that maintains cell's shape and protects cell from mechanical damage; made of cellulose , other polysaccharides , and protein.
Which molecues cross the membrane of a cell easily and which do not?
Non-polar molecules (such as fatty acids, steroid hormones and O2) pass freely through the cell membrane. Small uncharged molecules (such as H2O) also pass freely, but are slower. Large, polar molecules and ions (such as Na+ and K+) do not pass freely. Macromolecules (such as proteins and polysaccharides) do not pass through the cell membrane. Molecules and ions that cannot pass freely through the cell membrane rely on other means, such as protein transporters, to move in to the cell.
What are two structures that a material would have to cross to enter the cytoplasm of a plant cell?
In order to enter the cytoplasm of a plant cell, a material would have to cross the plasma membrane and then the cell wall. The plasma membrane regulates what enters and exits the cell, while the cell wall provides structural support and protection.
