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11., , 12., , THE BEST ACADEMY - NEET/JEE / CET TEST, SUB : CHEMISTRY, TOPIC : BIOMOLECULES, , Which of the following reagents cannot distinguish, , between glucose and fructose?, , 1) All carbohydrates 3) Fructose, , 2) Sucrose 4) Glucose, Hydrolysis of sucrose is called, , 1) Esterification 2) saponification, 3) inversion 4) hydration, , The standard compound for determination of, configuration in the’ sugar chemistry’ is, , 1) Glyceraldehyde 3) glucose, , 2) glycoaldchyde 4) fructose, , Which one of the following does not exhibit the, phenomenon of mutarotation?, , 1) (+)-Sucrose 3) (+)-Maltose, , 2) (+)-Lactose 4) (-)-Fructose, Oxidation of glucose with Bromine water forms, , 1) Gluconie acid 2) Glucaric acid, , 3) Saccharic acid 4) Tartaric acid, , Glucose molecule reacts with X number of molecules of, phenylhydrazine to yield osazone. The value of X is, , 1) three 3) one, , 2) two 4) four, Glucose and mannose are, , 1) anomers 3) Cs-epimers, 2) Cz-epimers 4) Cy-epimers, , Two forms of D-Glucopyranose obtained from the, solution of D-Glucose is called, , 1) Isomers 3) Epimers, , 2) Anomers 4) Enantiomers, , An organic compound with the formula C,H.20. forms, a yellow crystalline solid with phenylhydrazine and, gives a mixture of sorbitol and mannitol when reduced, with sodium. Which among the following could be the, compound?, , 1) Racemization, , 2) Asymmetric induction, , 3) functional isomerism, 4) Mutarotation, , . lodine test is shown by, 1) Polypeptides 3) Starch, 2) Glycogen 4) glucose, Molisch test is answered by, 1)all carbohydrates 3) Fructose, 2)sucrose 4)glucose, Seliwanoffs test is answered by, 1) Glucose 3) galactose, 2) fructose 4) mannose, , 13,, , 14., , 15., , 16., , Proteins are condensation polymers of, , 1) @ - Amino acids 3) 8 - Amino acids, 2) @- Hydroxy acids 4) B - Amino acids, The main structuaral feature of proteins is, , 1) Ester linkage 3) Peptide linkage, 2) Fther linkage 4) All of these., , Which one of the following is not a protein?, , 1) Wool 3) Hair, , 2) Nails 4) DNA, , Which of the following is a specific test for proteins?, 1) Beilstein test 3) Benedict's test, , 2) Biuret test 4) Molisch test, , 17. What is the monomer of a polypeptide?, 1) Amino acid 3) Nucleoside, 2) Glucose 4) Nucleotide, 18. Which of the following is not an amino acid?, 1) Glycine 3) Histidine, 2) Alanine 4) Benzidine, 19. The prosthetic group present in Glycoproteins is, , 20., , 21., , 1) Nucleic acid 3) Lipid, , 2) Phosphoric acid 4) Carbohydrate, , A metal which can form complex with Insulin is, , 1) Copper 3) zine, , 2) Iron 4) Cobalt., , Which of the following enzymes is not useful in the, digestion of proteins?, 1) Chymotrypsin, , 2) Pepsin, , 3) Trypsin, 4) Lipase, , 22. Structure of protein refers to, , 23., , 24., , 25., , 1) mainly denatured proteins and structure of, prosthetic groups, , 2) three dimensional structure, especially the bond, between amino acid residues that are distant from, each othe in the polypeptide chain., , 3) Linear sequence of amino acid residues in the, polypeptide chain, , 4) Regular folding patterns of continuous portions of, polypeptide chain, , Biuret test is not given by, , 1)proteins 3) polypeptide, 2)carbohydrates 4) urea, Example of denaturation is, , 1)coagulation of egg white on boiling, , 2)curdling of milk by bacteria, , 3) both (1) and (2) 4) none of these, On heating with conc. HNOs, proteins give yellow, colour. This test is called, 1)oxidizing test, , 2) xanthoproteic lest, , 3)molisch's test, 4) acid-base Lest

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26. Two vitamins absorbed from intestine along with fats, are, , 1) AD 2) AB 3) AC 4) DB, 27. The chemical name of Vit. B1 is, , 1) Ascorbic acid 3) Pyridoxine, , 2) Riboflavin 4) Thaimine, , 28. Increased bload pressure may be caused due to excess, secretion of, , 1) thyroxine 3) estradiol, 2) testosterone 4) adrenaline, 29. A vitamin that contains both N and P is, 1) Vitamin C 3) Vitamin By, 2) Vitamin K 4) Vitamin D, 30. The vitamin which is water soluble and antioxidant is, 1) Vitamin E 3) Vitamin- C, , 2) Vitamin-D 4) Vitamin- By