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Facilitated diffusion relies on specific proteins embedded in the cell membrane, known as transport proteins or carrier proteins. These proteins provide pathways for certain molecules, such as glucose or ions, to cross the hydrophobic lipid bilayer without requiring energy. They selectively bind to the substances they transport, allowing them to move down their concentration gradient. This process is crucial for maintaining cellular homeostasis.
What else can I help you with?
What is a protein moves molecules across a membrane?
Facilitated diffusion moves molecules through cell membranes passively.
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.
What used a protein to move a molecule across a cell membrane without energy?
Facilitated diffusion uses proteins to move a molecule across the cell membrane without energy.
Does the facilitated diffusion not require the cell to use energy?
It does not require the use of the cells energy.
What is falicitated diffusion?
Facilitated diffusion is a type of passive transport where specific molecules are transported across the cell membrane with the help of transport proteins. Unlike simple diffusion, facilitated diffusion requires the presence of these proteins to facilitate the movement of molecules across the membrane.
How are diffusion and facilitated diffusion similar?
Substances enter a cell through the cell membrane
Does facilitated diffusion require energy for the movement of molecules across the cell membrane?
No, facilitated diffusion does not require energy for the movement of molecules across the cell membrane.
Does facilitated diffusion require energy for the transportation of molecules across the cell membrane?
Facilitated diffusion does not require energy for the transportation of molecules across the cell membrane.
Does facilitated diffusion require energy to transport molecules across the cell membrane?
Facilitated diffusion does not require energy to transport molecules across the cell membrane.
What is a protein moves molecules across a membrane?
Facilitated diffusion moves molecules through cell membranes passively.
What types of transport mechanisms through the cell membrane are passive?
diffusion, facilitated diffusion, and osmosis
Does facilitated diffusion require a transport protein for the movement of molecules across the cell membrane?
Yes, facilitated diffusion does require a transport protein for the movement of molecules across the cell membrane.
What three factors influence regulation in the cell membrane?
Diffusion, osmosis, and facilitated diffusion.
What substance crosses the cell membrane by facilitated diffusion?
a sodium ion
Does facilitated diffusion require a carrier or channel protein for the movement of molecules across the cell membrane?
Yes, facilitated diffusion requires a carrier or channel protein for the movement of molecules across the cell membrane.
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.
What is faciillitated diffusion?
Facilitated diffusion is diffusion that occurs not through the cell membrane directly but through protein channels within the cell membrane. They are often, although not always, substrate specific.
