Biology/Life Science MCQ 004 for UGC CSIR JRF/NET, ICMR JRF, DBT JRF, GATE, ICAR NET examination...
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Transcript of Biology/Life Science MCQ 004 for UGC CSIR JRF/NET, ICMR JRF, DBT JRF, GATE, ICAR NET examination...
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UGCCSIRJRF/NET,ICMRJRF,DBTJRF,GATE,ICARNET
LifeSciencesModelQuestions(MCQ)004
ModelQuestionPaper
Biochemistry:CarbohydratesPart3(MCQ)
1. Whichofthefollowingisanexampleforatrisaccharide?a. Verbascoseb. Stachyosec. Raffinosed. Sucralose
2. Chrysolaminarinis________.a. Astoragepolysaccharideofgreenalgaeb. Astoragepolysaccharideofbrownalgaec. Astoragepolysaccharideofredalgaed. Astoragepolysaccharideofdiatoms
3. Whichofthefollowingisanexampleforanartificialsweetenerofsaccharideorigin?a. Sucraloseb. Saccharinc. Stachyosed. Allofthese
4. Inachemicalreaction‘X’isabletoconvertCu2+ionstoCu+ions.If‘X’isacarbohydrate,whichofthefollowingbestexplainstobethe‘X’?
a. ‘X’isareducingsugarb. ‘X’isanon‐reducingsugarc. ‘X’isamonosaccharided. Both(a)and(b)e. Both(b)and(c)
5. Whichofthefollowingisareducingsugar?a. Glucoseinclosedringformb. Glucoseinopenchainformc. Sucrose
6. D‐glucosereactswithmolecularoxygen(O2)inthepresenceoftheenzymeglucoseoxidasetoformD‐glucono‐δ‐lactoneand___________.
a. H2Owww.easy
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b. H2O2c. H2d. O3
7. Mostprominentcarbohydratecomponentofhemicelluloseisa. Pectinb. Arabinosec. Arabinoxyland. Suberin
8. Whichofthefollowingisanexampleforheteropolysaccharide?a. Hyaluronicacidb. Gelatinc. Glycogend. Both(a)and(b)
9. Glucoseonoxidationwithbrominewaterformsa. Glucuronicacidb. Glucosaccharicacidc. Gluconicacidd. Mannose
10. Dextrinisabranchedbacterialhomopolysaccharideof________linkedD‐glucosewith______branches.
a. α‐1–6andα‐1–3b. β‐1–6andβ‐1–3c. β‐1–6andα‐1–3d. α‐1–6andβ‐1–3
11. Laminarinis_____a. Astoragepolysaccharideofredalgaeb. Astoragepolysaccharideofbrownalgaec. Astructuralpolysaccharideofredalgaed. Astructuralpolysaccharideofbrownalgae
12. Whichofthefollowingstatementsaretrueaboutagarose?A.ItisabranchedpolysaccharideB.ItisalinearpolysaccharideC.ItismadeupofarabinoseD.AgaroseisoneoftheprincipalcomponentsofagarE.Agarisobtainedfromgreenalgae
a. A,BandCb. B,CandDc. C,DandEwww.ea
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d. D,EandA13. Caramelizationofsucroseyields
a. Glucoseb. Fructosec. GlucoseandFructosed. Charcoal
14. WhichofthefollowingreactioniscalledMaillardreaction”a. Reactionbetweenaminogroupandhydroxylgroupb. Reactionbetweenaminogroupandketogroupc. Reactionbetweenaminogroupandaldehydegroupd. Reactionbetweenaminogroupandcarboxylicgroup
15. Bial’stestisusedtodetectthepresenceof_____a. Trioseb. Tetrosec. Pentosed. Hexose
16. Whichofthefollowinganimalpossesscellulose?a. Coelenteratesb. Spongesc. Tunicatesd. Protozoans
17. Glucoseresiduesinamylosearelinkedbya. α1–4b. β1–4c. α1–6d. β1–6
18. Chitinisa_______a. HomopolysaccharideofNacetylglucosamineb. HeteropolysaccharideofNacetylglucosamineandNacetylmuramicacidc. Acomplexpolymerofmanysugarsd. AbranchedhomopolysaccharideofNacetylglucosamine
19. Thebranchpointsofamylopectinareconnectedbya. α1–4b. β1–4c. α1–6d. β1–6
20. Whichofthefollowingisanexampleforhomopolysaccharide?a. Cellulosewww.ea
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b. Starchc. Glycogend. Allofthese
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