Question

I'd like to find out your thoughts about protein structure as it relates to membranes. Specifically, what functions do transmembrane proteins serve? Are there any molecules that could also perform these proteins' functions? Please explain your answer. DO not hand write or post a hand written cursive response please. Only text. thank you

Answer 1

Transmembrane proteins are the solely mean of transport of polar molecules and ions tgrough the lipid bilayer. As lipid bilayer is nonpolar and it doesn't allow the passage of polar molecule throught it. Transmembrane protein are present in the membrane on the outer and inner surface. These passes the molecules by binding at one surface and then confirmational changes to transport across the membrane. Transmembrane protein may be alpha helix or Beta barrels. Transmembrane proteins are responsible for active transport of ions as NaK ATPase pump. No other molecules can function the transport of polar molecule across the membrane.