Match List-I with List-II regarding the components of the cell membrane. List-I List-II A. Peripheral proteins I. Partially or totally buried in the membrane B. Integral proteins II. Made of saturated hydrocarbons C. Polar head of lipid III. Lie on the surface of the membrane D. Non-polar tail of lipid IV. Faces the outer aqueous environment Choose the correct answer from the options given below:

Step-by-step solution

According to the fluid mosaic model of the cell membrane: Peripheral proteins (A) lie on the surface of the membrane (III), whereas integral proteins (B) are partially or totally buried in the membrane (I). The lipid bilayer is arranged such that the polar hydrophilic heads (C) face the outer aqueous environment (IV), while the non-polar hydrophobic tails (D), which are made of saturated hydrocarbons (II), are protected inside the membrane. Therefore, the correct matching is A-III, B-I, C-IV, D-II. Answer: A-III, B