Csir net icmr dbt gate model questions mcq 01 biochemistry carbohydrates
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LifeSciencesModelQuestions(MCQ)01
Biochemistry:Carbohydrates_1(MCQ)
1. Thegeneralchemicalformulaofcarbohydrateisa. (CH2O)nb. (CH2O)2n
c. (CHO)nd. CnH2nO
2. Whichofthefollowingisanaldotriose?a. Dihydroxyacetoneb. Glyceraldehyde
c. Ribulosed. Erythrose
3. Whatisthemolecularformulaofsucrose?a. C12H22O11b. C10H20O10
c. C6H12O6d. C12H20O11
4. Theglycosidiclinkagebetweenglucosemoleculeinmaltoseisa. β1–4b. α1–2
c. α1–4d. β1–2
5. Aketopentosewillhave_____sterioisomers.a. 4b. 6
c. 8d. 10
6. Thereservefoodmaterialofgreenalgaeisa. Laminarinb. Chrysolaminarin
c. Floridianstarchd. Starch
7. Theonlycarbohydratewhichisnothavinganychiralcarbonatomisa. Glyceraldehydeb. Erythrose
c. Dihydroxyacetoned. Erythrulose
8. Selecttheoddonefromthefollowing.a. Arabinoseb. Xylose
c. Lyxosed. Erythrose
9. Apentosesugarreportedtobepresentinheartcellsa. Xyloseb. Arabinose
c. Lyxosed. Xylulose
10.Whichofthefollowingisanepimericpair?a. D‐glucoseandD‐mannoseb. D‐glucoseandD‐galactose
c. D‐glucoseandL‐glucosed. BothAandB
11. Selecttheoddonefromthefollowinga. Xylulose b. Dihydroxyacetonewww.ea
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c. Glyceraldehyde d. Ribulose12. WhichofthefollowingsugargiveapositiveresultwithSeliwanofftest
a. Sucroseb. Glucose
c. Galactosed. Mannose
13. Whichofthefollowingisaketotetrose?a. Erythruloseb. Xylulose
c. Sorbosed. Psicose
14. Theglycosidiclinkagebetweentwoglucosemoleculesinisomaltoseisa. α1–4b. β1–4
c. α1–6d. β1–6
15. Whichofthefollowingisanalphalactonea. Vit.Cb. Vit.D
c. Vit.Ad. Vit.K
16. Asweetenerusedinsugarlessgumsandcandiesa. Ribitolb. Xylitol
c. Inositold. Mannitol
17. Theglycosidiclinkageincellobioseisa. α1–4b. β1–4
c. α1–6d. β1–6
18. Pickouttheoddonefromthefollowinga. Deoxyriboseb. Rhamnose
c. Fucosed. Altrose
19. Lectinsare_________.a. Sugarsspecifictoproteinsb. Proteinsspecifictosugarsc. Enzymesspecifictocarbohydratesd. Carbohydratesspecifictoenzymes
20. Whichofthefollowingisaketotriose?a. Dihydroxyacetoneb. Glyceraldehyde
c. Ribulosed. Erythrose
21. Maltoseisadisaccharideof____a. Glucoseandgalactoseb. Glucoseandglucose
c. Glucoseandlactosed. Fructoseandlactose
22. Glycosidicbondinsucroseis____a. α1–4b. β1–4
c. α1–2d. β1–2
23. Minimumnumberofcarbonrequiredforaketosesugartohavecyclicstructureisa. 3 b. 4www.ea
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c. 5 d. 624. Analdohexosewillhave_____stereoisomers
a. 8b. 10
c. 14d. 16
25. Minimumnumberofcarbonrequiredforamonosaccharidea. 1b. 2
c. 3d. 4
26. Whichofthefollowinganimalpossesscellulose?a. Coelenteratesb. Sponges
c. Tunicatesd. Protozoans
27. Glucoseresiduesinamylosearelinkedbya. α1–4b. β1–4
c. α1–6d. β1–6
28. Chitinisa_______a. HomopolysaccharideofNacetylglucosamineb. HeteropolysaccharideofNacetylglucosamineandNacetylmuramicacidc. Acomplexpolymerofmanysugarsd. AbranchedhomopolysaccharideofNacetylglucosamine
29. Thebranchpointsofamylopectinareconnectedbya. α1–4b. β1–4
c. α1–6d. β1–6
30. Whichofthefollowingisanexampleforhomopolysaccharide?a. Celluloseb. Starch
c. Glycogend. Allofthese
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