The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the functions of the embedded proteins? A. protecting the cell from physical harm B. allowing specific substances to flow into the cell C. preventing the phospholipid tails from binding together D. defining the cell's structure and shape
Answers
Correct answer: B). Allowing specific substances to flow into the cell
Membrane protein is found in all types of cell membrane, it can either be integral protein, which is embedded within the membrane or associated protein, which is associated with the surface of cell membrane of phospholipid bilayer.
It perform several function such as cell to cell communication, molecular transport and cell signalling.
Embedded proteins are proteins which are found in the cell membrane, which are completely embedded in the bilayer membrane of the cell membrane. It consists of hydrophillic head and hydrophobic tail. The head face towards the water molecule and tail face inward away from the water molecule. These protein help in the movement of molecules in and out of the membrane.
Example of embedded proteins: Channel proteins and carrier proteins and are example of some of the embedded proteins.