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NEETZoologyChemical Coordination and Integration

Identify the substances having a phosphodiester bond and an ester bond, respectively, in their structure.

Options

  1. AATP, Lecithin
  2. BRNA, Triglyceride
  3. CDNA, Trypsin
  4. DCholesterol, Glycogen

Correct answer

B. RNA, Triglyceride

Step-by-step solution

Nucleic acids like RNA and DNA contain phosphodiester bonds that link the 3' carbon of one sugar to the 5' carbon of the succeeding sugar. Lipids such as triglycerides contain ester bonds formed between the hydroxyl groups of glycerol and the carboxyl groups of fatty acids. ATP contains phosphoester and phosphoanhydride bonds, not phosphodiester bonds. Trypsin is a protein and contains peptide bonds. Cholesterol is a derived lipid that lacks ester bonds (unless esterified), and glycogen is a polysaccharide containi

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