The compounds in biological membranes that form a barrier to the movement of hydrophilic materials across the membrane are <u>lipid</u>.
Biological Membrane- A biological membrane, also known as a bio membrane or cell membrane, is a selectively permeable membrane that divides a cell's interior from its surroundings or establishes intracellular compartments by acting as a wall between different parts of the cell.
Hydrophilic- Being highly affine to water is referred as as being hydrophilic. Hydrophilic substances quickly dissolve into water and are soluble in it.
Membrane Lipid- Lipids serve as crucial membrane structural elements, signaling molecules, chemical markers for particular membranes, and energy storage molecules.
The given question is incomplete, find below the complete question,
Q. The compounds in biological membranes that form a barrier to the movement of hydrophilic materials across the membrane are
a. integral membrane proteins.
b. carbohydrates.
c. lipids.
d. nucleic acids.
e. peripheral membrane proteins.
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