The non polar region of the cell membrane causes membrane proteins to remain in the membrane. The polarity of the inner and outer parts make them hydrophilic. What causes a membrane protein to be held in the lipid bilayer? The polarity of the proteins outer regions and non polar inner regions hold them in the bilayer.Click to see full answer. Likewise, people ask, what keeps proteins within the lipid bilayer?Integral proteins are embedded within the lipid bilayer. They cannot easily be removed from the cell membrane without the use of harsh detergents that destroy the lipid bilayer. The stretch of the integral protein within the hydrophobic interior of the bilayer is also hydrophobic, made up of non-polar amino acids. what are the 3 proteins in the cell membrane? Based on their structure, there are main three types of membrane proteins: the first one is integral membrane protein that is permanently anchored or part of the membrane, the second type is peripheral membrane protein that is only temporarily attached to the lipid bilayer or to other integral proteins, and the third Additionally, how are proteins held in the membrane? Integral membrane proteins, also called intrinsic proteins, have one or more segments that are embedded in the phospholipid bilayer. Most integral proteins contain residues with hydrophobic side chains that interact with fatty acyl groups of the membrane phospholipids, thus anchoring the protein to the membrane.What is the function of enzymes found in the cell membrane?Membrane proteins can function as enzymes to speed up chemical reactions, act as receptors for specific molecules, or transport materials across the cell membrane. Carbohydrates, or sugars, are sometimes found attached to proteins or lipids on the outside of a cell membrane.