please answer the question as soon as possible with appropriate reason.
Dear Student
Correct option is (1)
The most accepted model for the structure of plasma membrane is the Fluid Mosaic Model which was given by Singer and Nicolson.
1)It states that the plasma membrane is lipoproteinaceous in nature and is the trilaminar membrane.
2)The outer and inner layers are made up of proteins.
3)The membrane has lipid bilayer in which the polar head of the phospholipid molecules is outside and the hydrophobic ends or tails of the lipid are inside.Thus, it has quasi-fluid nature.
4)Different types of proteins are also present like the channel proteins or tunnel proteins within the lipid bilayer.
5)Integral proteins are buried inside the membrane bilayer and the extrinsic proteins are found at the surface of the membrane.
6)The fluid mosaic model states the structure of plasma membrane as "protein icebergs in the sea of phospholipids".Thus, the quasi-fluid nature provides elasticity and flexibility nature of the membrane.
7)It is selectively permeable and thus allows only specific molecules to move in and out of the cell.
8)The proteins present in the membrane also help in the active transport of molecules across the membrane.
Regards
Correct option is (1)
The most accepted model for the structure of plasma membrane is the Fluid Mosaic Model which was given by Singer and Nicolson.
1)It states that the plasma membrane is lipoproteinaceous in nature and is the trilaminar membrane.
2)The outer and inner layers are made up of proteins.
3)The membrane has lipid bilayer in which the polar head of the phospholipid molecules is outside and the hydrophobic ends or tails of the lipid are inside.Thus, it has quasi-fluid nature.
4)Different types of proteins are also present like the channel proteins or tunnel proteins within the lipid bilayer.
5)Integral proteins are buried inside the membrane bilayer and the extrinsic proteins are found at the surface of the membrane.
6)The fluid mosaic model states the structure of plasma membrane as "protein icebergs in the sea of phospholipids".Thus, the quasi-fluid nature provides elasticity and flexibility nature of the membrane.
7)It is selectively permeable and thus allows only specific molecules to move in and out of the cell.
8)The proteins present in the membrane also help in the active transport of molecules across the membrane.
Regards