Q24 / 200 · NEET 2007 · Botany

Which one of the following is not a constituent of cell membrane'?

  • A
    glycolipids
  • Correct answer
    B
    Proline
  • C
    phospholipids
  • D
    cholesterol.

Solution

Cell membrane is chemically made of lipoprotein $(60 \%)$ and carbohydrates (2-10\%). The lipids of cells membrane are of three types phospholipids, glycolipids and sterols. Proline, on the other hand, is an amino acid which is not a constituent of the plasma membrane.

Hence, the correct answer is option: 'B'.

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