U caint see the answers sorry
        
                    
             
        
        
        
Process, transmit, and receive nerve impulses (electrical signals) from periphery to central nervous system.
        
                    
             
        
        
        
The overall three-dimensional structure of a polypeptide is called its tertiary structure. The tertiary structure is primarily due to interactions between the R groups of the amino acids that make up the protein.