A group of biologically active molecules formed from amino acids which interact with the surfiace of the lipid bilayer of cell membranes are called:
Correct answer: B. Peripheral proteins
- A. Integral Proteins
- B. Peripheral proteins
- C. Cell wall
- D. Plasmodesmata
Explanation
Peripheral proteins, or peripheral membrane proteins, are a group of biologically active molecules formed from amino acids which interact with the surface of the lipid bilayer of cell membranes. Unlike integral membrane proteins, peripheral proteins do not enter into the hydrophobic space within the cell membrane. Instead, peripheral proteins have specific sequences of amino acids which allow them to attract to the phosphate heads of the lipid molecules or to integral proteins.
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