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Why are proteins and polysaccharides cannot be transported across a cell membrane by carrier proteins?
Wiki User
∙ 7y ago
They are too large to be transformed by carrier proteins. They are moved across by Vesicles instead.
Wiki User
∙ 10y ago
Wiki User
∙ 13y agoproteins can't diffuse through a cell membrane like water because natural diffusion only works with lipid-soluble molecules....
Wiki User
∙ 8y agoThey are too large to be transported by carrier proteins.
They are moved across by vesicles instead. They are transported by endocytosis and exocytosis.
Wiki User
∙ 14y agothe molecules of proteins and polysaccharides are very large, while in comparison water is a very small molecule.
Wiki User
∙ 13y agoThey are too large to be transported by carrier proteins.
They are moved across by vesicles instead.
Wiki User
∙ 7y agoThey are too large to be transported this way and have to be transported by endocytosis.
Wiki User
∙ 13y agothey are to big to fit thru the membrane
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How carrier protein inserted into plasma membrane?
Carrier proteins are embedded in the plasma membrane through a process called facilitated diffusion or active transport. These proteins are synthesized in the endoplasmic reticulum, transported to the cell membrane in vesicles, and then inserted into the lipid bilayer through interactions with specific lipids and membrane proteins. The exact mechanism of insertion can vary depending on the structure and function of the carrier protein.
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.
How do carrier proteins transport substances across membranes?
Carrier proteins bind to specific molecules on one side of the membrane, undergo a conformational change, and release the molecules on the other side. This process allows the substances to be transported across the membrane selectively.
Are carrier proteins are located in the membrane?
yes they are
The carrier proteins that help in facilitated diffusion are what kind of proteins?
The carrier proteins that aid in facilitated diffusion are integral membrane proteins. These proteins are embedded within the cell membrane and undergo conformational changes to transport molecules across the membrane.
What substances are too large for carrier proteins?
Large molecules such as proteins and polysaccharides are usually too large to be transported by carrier proteins. These molecules are often transported through other mechanisms like endocytosis or exocytosis.
Why cant proteins and polysaccharides diffuse through the membrane like water does?
Proteins and polysaccharides are too large to pass through the hydrophobic lipid bilayer of the cell membrane. Water, being a small molecule, can easily pass through the membrane via simple diffusion. Proteins and polysaccharides typically require specialized transport mechanisms, such as channels or carrier proteins, to facilitate their movement across the membrane.
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.
How carrier protein inserted into plasma membrane?
Carrier proteins are embedded in the plasma membrane through a process called facilitated diffusion or active transport. These proteins are synthesized in the endoplasmic reticulum, transported to the cell membrane in vesicles, and then inserted into the lipid bilayer through interactions with specific lipids and membrane proteins. The exact mechanism of insertion can vary depending on the structure and function of the carrier protein.
What type of proteins are used in facilitated diffusion?
Facilitated diffusion involves the use of integral membrane proteins known as carrier proteins or channel proteins to help transport specific molecules across the cell membrane. These proteins provide a pathway for the molecules to cross the lipid bilayer more efficiently than simple diffusion.
How do carrier proteins transport substances across membranes?
Carrier proteins bind to specific molecules on one side of the membrane, undergo a conformational change, and release the molecules on the other side. This process allows the substances to be transported across the membrane selectively.
Are carrier proteins are located in the membrane?
yes they are
Proteins are transported from the nuclear membrane to other parts of the cell through the?
Proteins are transported from the nuclear membrane to other parts of the cell through the nuclear pores that allow controlled passage of molecules. This process involves carrier proteins that recognize specific signals on the proteins to be transported. Once in the cytoplasm, proteins can be further directed to their destination through various sorting mechanisms within the cell.
The carrier proteins that help in facilitated diffusion are what kind of proteins?
The carrier proteins that aid in facilitated diffusion are integral membrane proteins. These proteins are embedded within the cell membrane and undergo conformational changes to transport molecules across the membrane.
Are carrier proteins in the cell membrane?
yes they are
What component of a phospholipid membrane helps the cell interact with its polar watery environment?
Membrane proteins.
What are the protein molecules in a cell membrane that assist in cell transport?
Protein molecules involved in cell transport include carrier proteins, channel proteins, and pump proteins. Carrier proteins bind to specific molecules and transport them across the membrane, channel proteins form channels for molecules to pass through, and pump proteins use energy to actively transport molecules against a concentration gradient.
