Page 2 :
DPP/ CB09, * An enzyme brings about, (A) decrease in reaction time, 15. Sigmoid growth curve is represented by, ) AN N, ) ANd=N(1-N/K), ) Nt N B+1-D-E, (4) Nt=1-N/K, (h) increase in reaction time, (o increase in activation energy, (4) reduction in activation energy, 10. The enzymes hexekinase which catalyses glucose to 16. Accenuyme is, ghacose-6-phosphate in glycolysis is inhibited by glacose-, -phosphate. This is an example of, (a) competitive inhibition, b) nom-competitive inhihition, () feedhack allosteric inhibition, (4) positive feedhack, IL. The enermous diversity of protein molecules is due mainly 17. The most hasice amino acid is, to the diversity of, (a) amino groups on the amino acids, h) Rgroups on the amino acids, ( amino acid sequences within the protein molecule, (d) peptide bonds, 12. Length of ene turn of the helix in a B-form DNA is, approsimately, (A) 34nm, Same enzyme that occurs in different tissues such as, heart and muscle, ) One that shares the function of other enzyme, ) Organic er inerganic in nature and helps activate, metabolic enzymes, 4) Organic non-protein in nature and helps to activate, metabolic enzymes, (h) Hisidine, (d) Glutamine, I8. Which of the follewing is not an aromatic amine acid?, (h) Tyrosine, (d) Tryptephan, 19. The class of enzymes that catalyze the removal of a group, from a substrate without addition of water, leaving double, Arginine, ) Glycine, Valine, o Phenylalanine, bonds, is, () 034 am, (d 20m, 13. The cataltic efficiency of two different enzymes can be, compared by the, (a) formation of the product, (b) ploptimum value, (e K value, (4) molecular size of the enzyme, 14 Which of the follewing sets contains polysaccharides?, (a) Glucose, fructose, lactese, (h) Starch, glycogen, cellulose, () Sucrose, maltose, cellukose, (4) Galactose, starch, sucrose, Transferases (b) Dehydrogenases, (d Lyases, 20. Whichof the following is a cumponent of vitamia (hiamine., hictin), Acetyl CoA,cysteine, methionine and ferredexin?, (b) S, (d) K, 21. The helical structre of protein is stabilized by, (b Peptide bonds, ) Disulphide hends (d) Hydrogen bonds, o Hydrolases, Fe, ) Ce, Ester, 22. Cellulese is a polymer ef, aglucose, BD-ghacose, ) a-D-ghcose, pL-glacose

Page 3 :
DPPI CB09, H 35, Given siructural fomula is correctly identified alongwith its, related function by which of the following options?, Cholesterol-Acompenent of animal cell membrane, h) Lecithin-Acumponent of cell menbrane, () Triglyceride-An energy source, (d) Adenesine-A compenent of nacleic acids, 27. Select he option that correctly identifies the chemical bonds, present in the given biomolecules., Pilysaccharides-A Proteins-B. Fats-C, Water-D, 23. The given graph shows the effectof substrate concentration, on the rate of reaction of the enzyme green -gram-, phosphatase. What does the graph indicate, O Ester, Peptide Gilycosidic Hydrogen, Hydrogen, Substrate Concentation (s), a The rate of enzyme reaction is directly proportienal to, ) Glycosidic Peptide Hydrogen Ester, d) Hydrogen Ester, Peptide, the substrate concentration, (b) Presemceof an enzyme inhibiter in the reaction mixture 28. Which of the following statements is net correct regarding, () Formation of an enzyme-ubstrate complex, (d) At higher substrate-concentration the pH increases., 24. The Km value of the enzyme is the value ef the substrate, concentration at which the reaction reaches to, Glycnidic, chitin?, t is a sterage polysaccharide, ) k is a heaopelysecharide, It isa constitaent of arthropod exeskeleten and fungal, cell wall, (a) Zere, () Vma, th) 2V, (d) Vmax, d) I is the second most ahundant cartohydrate on earth, 29. Which of the following secondary metabolites are used as, drugs?, a)Abrin and ricin, e) Viablastin andcurcamin, ) Anthocyanins, 4) Gums and cellulose, 30. Enzymes that catalyse removal of greups from substrates, by mechanisms other than hydrolysis, and addition of, greups te double bonds, are called, a) ligases, ohydrolases, 31. Which of the follewing statement is incorrect wE. starch?, Starch consists ef unbranched amylose and branched, amylopectin, ) is a pelymer of a-D-glucose, ) Successive glucose units are linked together by a I, 6 linkage and at branching a 1-4 linkage is found, 64) Starch turns hlack with iodine, 25. Which group cuntains hiocatalysts?, Myosin, exytocin, adrenalin, (b) Peptidase, amylase, remnin, (9 Glucose, amine acids, fatty acids, (d) Rhodopsin, pepsin, steapsin, (h) lyases, id dehydrogenases, -CH-CH,, Velocity ev)

Page 4 :
DPP/ CB09, 40. The stracture ef glacose and galactose are same except, with regard to, a) First carbon atom, h) Second carbon atom, ) Third carben am, id) Fourth carben atom, 32 Cellulose differs from chitin in, (a) Branching, (b) Type of glycesidic bond, (o Type of menomer unit, (d) Abundancy in biosphere, 33. Oils are rich in, 41. Al the folowing statements are true with regard to glucose,, Glycerol that pessesses three hydrosyl groups, (h) Saturated fatty acids, (o Fats that are gemerally liquid at room temperature, (d) Esters of fatty acids, 34. Bonds that do not esist in tertiary stracture of proteins, (a) Cevalent bends, (b) Phosphodiester bends, (o Hydrophobic etnractions, (d) lonic bonds, 35. Cleavage of specific covalent honds and remeval of groups, without bydrelysis is the property of, (a) Isomerases, () Hydrolases, 3. The catalytic efficiency of twe diflerent enzymes can be, compared by the, (a) Kvalue, (h) pf value, (o Formation of the product, (d) Molecular size ef the enzyme, 37. Which of the following is an example of iscayme?, (a) a-Amylase, (b) Glacokinase, () Lactate deh ydrogenase, (d) All ef these, 38. Essential amino acids include, (a) leucine, (o tryptophan, 39. Acidic amine acids have two-COOH groups and cne-, NH, group per molecule. Select the pair that consists of, acidic amine acids, (a) Aspartic acid, glutamic acid, (b) Lysine, arginine, (o Glycine, alanine, (d) Beth (a) and h), except:, a) i is an aldohesose, ) kisa reducing sugar, ) his present in starch and cellulose, id) h is an epimer of fructose, 42 Guanylic acid is a, Nucleaside of purine, )Nuclenside of pyrimidine, ONucleotide of purine, d) Nuclectide of pyrimidine, 43. Long chain molecies of fatty acids are formed by, Pulymerisation of 2 carben compounds, ) Decompesiticn of fats, o Palymerisation of glycogen, (4) Conversion of glycogen, 44. Read the following four statements (A to Dj and mark the, option that has both correct statements, A. Blood conc. of glucose in a nermal healthy man is 4.5, No 50 mM, BIn proteins caly left handed helices are observed, CThe pitch of B-DNAis 3.4 Angstrom, D At each step of ascent the strand of DNA turas 36, degree, )AB, (h) Lyases, (d) Transferases, b) BC C.D d A.D, 45. Which one, the following biomolecules is correatly, Lecithin-A phesphorylated glyceride found in cell, ) Palmitic acid-An unsaturated fatty acid with 18 carbon, OAdenylic acid-Adenosine with a glacose phosphate, (h) valine, id) all of these, characterized?, menbrane, atems, molecule, 4) Alanine amino acid-Contains an amine group and an, acidic group anywhere in the molecule.