NEET UG 2021 — Biomolecules

Which of the following are not secondary metabolites in plants?

Following are the statements with reference to 'lipids'. (a) Lipids having only single bonds are called unsaturated fatty acids. (b) Lecithin is a phospholipid. (c) Trihydroxy propane is glycerol. (d) Palmitic acid has $20$ carbon atoms including carboxyl carbon. (e) Arachidonic acid has $16$ carbon atoms. Choose the correct answer from the options given below.

Identify the incorrect pair.

Match List - I with List- II. <table class="pyq-table"><tbody><tr><td colspan="2" rowspan="1">Column-I</td><td colspan="2" rowspan="1">Column-II</td></tr><tr><td>(a)</td><td>Protein</td><td>(i)</td><td>$C=C$ double bonds</td></tr><tr><td>(b)</td><td>Unsaturated fatty acid</td><td>(ii)</td><td>Phosphodiester bonds</td></tr><tr><td>(c)</td><td>Nucleic acid</td><td>(iii)</td><td>Glycosidic bonds</td></tr><tr><td>(d)</td><td>Polysaccharide</td><td>(iv)</td><td>Peptide bonds</td></tr></tbody></table>Choose the correct answer from options given below.