CGPET 2019 Solved Paper

Correct statements are 1,2 and 3 .
1. Lysozyme is a special enzyme found in tears, saliva, sweat and other body fluids. It is a glycoside hydrolase that catalyses the hydrolysis of 1,4 -beta-linkage between N-acetylmuramic acid (NAM) and N-acetyl-D-glucosamine ( NAG ) residues, which is the major component of gram positive bacterial cell wall.
2. The hemoglobin S molecule is made up of four polypeptide chains that is two alpha and two beta chain.
3. Sanger's reagent is 1-fluoro-2,4-dinitrobenzene. It reacts with N-terminal amino acid of polypeptides. This can be helpful for sequencing proteins.
4. Derived lipids are the substances derived from simple and compound lipids by hydrolysis. The most common derived lipids are steroids, terpenes and carotenoids. So, vitamin mathrm‌K and coenzyme Q are derived lipids.