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Which line represent the diffusion of glucose through the lipid bilayer?
The diffusion of glucose through the lipid bilayer is typically represented by a line indicating facilitated diffusion. This process involves specific transport proteins, such as glucose transporters, which assist glucose molecules in crossing the hydrophobic lipid bilayer. Unlike simple diffusion, glucose requires these proteins due to its polar nature, which prevents it from passing freely through the lipid bilayer. Thus, the line representing this process would show a gradual increase in glucose concentration inside the cell until it reaches equilibrium.
When would facilitated diffusion be used?
Facilitated diffusion is used when molecules need to move across a cell membrane from an area of high concentration to an area of low concentration, but cannot pass through the lipid bilayer on their own. In facilitated diffusion, carrier proteins or channel proteins help facilitate the movement of these molecules across the membrane.
When does facilitated diffusion occur?
Facilitated diffusion occurs when molecules move across a cell membrane with the help of specific transport proteins. This process is used to transport large, polar, or charged molecules that cannot pass through the lipid bilayer unaided.
How do Lipid-soluble molecules and gases enter the cell?
diffusion through the lipid bilayer.
Molecules that permeate a plasma membrane by facilitated diffusion is what?
Molecules that permeate a plasma membrane by facilitated diffusion are typically larger, polar molecules that cannot pass through the lipid bilayer unassisted. These molecules rely on specific transport proteins embedded within the membrane to facilitate their movement across the membrane down their concentration gradient.
What molcule can pass through a lipid bilayer by simple diffusion with no assistance from proteins?
Carbon.water molecules,glucose molecules can pass through lipid bilayer by simple diffusion
Can polar molecules pass through the phospholipid bilayer?
Yes, polar molecules can pass through the phospholipid bilayer through facilitated diffusion or active transport.
Which line represent the diffusion of glucose through the lipid bilayer?
The diffusion of glucose through the lipid bilayer is typically represented by a line indicating facilitated diffusion. This process involves specific transport proteins, such as glucose transporters, which assist glucose molecules in crossing the hydrophobic lipid bilayer. Unlike simple diffusion, glucose requires these proteins due to its polar nature, which prevents it from passing freely through the lipid bilayer. Thus, the line representing this process would show a gradual increase in glucose concentration inside the cell until it reaches equilibrium.
Can polar molecules cross the lipid bilayer?
Yes, polar molecules can cross the lipid bilayer through facilitated diffusion or active transport mechanisms.
When would facilitated diffusion be used?
Facilitated diffusion is used when molecules need to move across a cell membrane from an area of high concentration to an area of low concentration, but cannot pass through the lipid bilayer on their own. In facilitated diffusion, carrier proteins or channel proteins help facilitate the movement of these molecules across the membrane.
What is the process in which certain molecules act as carriers to move materials such as sugar across the cell membrane?
Ions such as sodium, potassium, chloride and calcium. Some molecules that are too big to get through the lipid bilayer by themselves can also be shuttled across the membrane by carrier proteins.
When does facilitated diffusion occur?
Facilitated diffusion occurs when molecules move across a cell membrane with the help of specific transport proteins. This process is used to transport large, polar, or charged molecules that cannot pass through the lipid bilayer unaided.
How do Lipid-soluble molecules and gases enter the cell?
diffusion through the lipid bilayer.
Molecules that permeate a plasma membrane by facilitated diffusion is what?
Molecules that permeate a plasma membrane by facilitated diffusion are typically larger, polar molecules that cannot pass through the lipid bilayer unassisted. These molecules rely on specific transport proteins embedded within the membrane to facilitate their movement across the membrane down their concentration gradient.
What types of molecules diffuse through the cell membranes by facilitated diffusion?
Molecules that are charged or polar, such as ions, glucose, and amino acids, diffuse through cell membranes by facilitated diffusion. This process relies on carrier proteins or channel proteins to help facilitate the movement of these molecules across the membrane.
What does Phospholipid Bilayer?
The phospholipid bilayer is the outer layer of the cell. It only lets very small molecules through it. The bigger ones will have to go through the proteins lodged in the bilayer and the HUGE molecules will have to perform exocytosis or endocytosis
What is the lipid bilayer impermeable to?
The lipid bilayer is impermeable to large polar molecules, such as ions and most proteins. It is also impermeable to water-soluble molecules that are not specifically transported across the membrane by proteins or channels.
