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NEET2026BiologyChapterActual

Given below is a list of biomolecules: A. Arachidonic acid B. Lecithin C. Cholesterol D. Tripalmitin E. Palmitic acid Which of the following biomolecules do NOT contain a glycerol backbone in their structure?

Options

  1. AB and D only
  2. BA, C and E only
  3. CA, B and D only
  4. DC, D and E only

Correct answer

B. A, C and E only

Step-by-step solution

Arachidonic acid is a polyunsaturated fatty acid with 20 carbon atoms. It does not contain a glycerol backbone. Lecithin is a phospholipid containing a glycerol backbone attached to two fatty acids, a phosphate group, and a choline molecule. Cholesterol is a lipid with a sterol ring structure. It does not contain a glycerol backbone. Tripalmitin is a triglyceride formed by the esterification of glycerol with three molecules of palmitic acid. It contains a glycerol backbone. Palmitic acid is a saturated fatty acid w

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