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Is glucose permeable through phospholipid bilayer?
No, glucose is not permeable through the phospholipid bilayer on its own because it is a polar molecule. It requires a specific transport protein, such as a glucose transporter, to facilitate its passage across the membrane.
Which of the following would likely move through the lipid bilayer of a plasma membrane most rapidly?
Small, nonpolar molecules such as oxygen and carbon dioxide would likely move through the lipid bilayer of a plasma membrane most rapidly due to their ability to dissolve in the hydrophobic core of the membrane.
Which molecule among the following will not pass through the phospholipid bilayer of a membrane?
The molecule that will not pass through the phospholipid bilayer of a membrane is a large and polar molecule.
A molecule such as glucose must use a protein channel to cross through a cell membrane?
This is correct. Glucose, being a large molecule, requires a protein channel called a glucose transporter to facilitate its passage through the cell membrane. Glucose transporters assist in transporting glucose molecules across the hydrophobic lipid bilayer of the cell membrane.
What types of molecules pass through the membrane rapidly?
Small and uncharged molecules such as oxygen, carbon dioxide, and water pass through the membrane rapidly due to their size and properties which allow them to diffuse easily across the lipid bilayer. Lipid-soluble molecules, like steroid hormones, also cross the membrane quickly due to their ability to dissolve in the nonpolar lipid bilayer.
Is glucose permeable through phospholipid bilayer?
No, glucose is not permeable through the phospholipid bilayer on its own because it is a polar molecule. It requires a specific transport protein, such as a glucose transporter, to facilitate its passage across the membrane.
Which of the following would likely move through the lipid bilayer of a plasma membrane most rapidly?
Small, nonpolar molecules such as oxygen and carbon dioxide would likely move through the lipid bilayer of a plasma membrane most rapidly due to their ability to dissolve in the hydrophobic core of the membrane.
Which molecule among the following will not pass through the phospholipid bilayer of a membrane?
The molecule that will not pass through the phospholipid bilayer of a membrane is a large and polar molecule.
A molecule such as glucose must use a protein channel to cross through a cell membrane?
This is correct. Glucose, being a large molecule, requires a protein channel called a glucose transporter to facilitate its passage through the cell membrane. Glucose transporters assist in transporting glucose molecules across the hydrophobic lipid bilayer of the cell membrane.
Why do oxygen molecules easily diffuse across a cell membrane while glucose molecules do not?
Oxygen molecules are small and nonpolar, which allows them to easily pass through the hydrophobic lipid bilayer of the cell membrane via simple diffusion. Glucose molecules, on the other hand, are larger and polar, making it more difficult for them to move through the nonpolar interior of the lipid bilayer. They require specific transport proteins or channels to facilitate their movement across the membrane.
What types of molecules pass through the membrane rapidly?
Small and uncharged molecules such as oxygen, carbon dioxide, and water pass through the membrane rapidly due to their size and properties which allow them to diffuse easily across the lipid bilayer. Lipid-soluble molecules, like steroid hormones, also cross the membrane quickly due to their ability to dissolve in the nonpolar lipid bilayer.
What is the purpose of the proteins in the bilayer?
They can be used to carry things across the membrane. for example, glucose is too large to diffuse through, so a protein must be used to carry it.
Why cant glucose be able to move across a cell membrane by simple diffusion?
Glucose is a large and polar molecule, which makes it difficult to pass through the hydrophobic interior of the cell membrane. As a result, glucose requires specific transporter proteins to facilitate its movement across the membrane.
Can CO2 diffuse through the lipid bilayer?
Yes, carbon dioxide (CO2) can diffuse through the lipid bilayer of a cell membrane.
Can hydrophobic molecules pass through a membrane?
Yes, hydrophobic molecules can pass through a membrane because the lipid bilayer of the membrane is also hydrophobic, allowing them to move through easily.
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
What will not diffuse through the cell membrane?
Glucose
