2 functions proteins do for the cell membrane

1:To facilitate passive or active transportation of molecules into, or out of the cell.

2:Metabotropic receptors that facilitate biochemical cascades or other events in the cell.

Explanation:

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides