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LifeSciencesModelQuestions(MCQ)003

ModelQuestionPaper

Biochemistry:CarbohydratesPart2(MCQ)

1. Thevitreoushumorofeyeiscomposedof

a. Heparinb. Hyaluronicacidc. KeratanSulfated. Chondroitinsulfate

2. N‐acetylglucosamine(NAG)andN‐acetylmuramicacid(NAM) inpeptidoglycan isconnectedby_________glycosidiclinkage.

a. α1–4b. β1–4c. α1–2d. β1–2

3. Sulbactamisa____________.a. β‐lactamantibioticb. βlactamasec. βlactamaseinhibitord. Aclassofpenicillin

4. Which of the following isnot a sugarmolecule of theO‐antigenof gramnegativebacteria?

a. Tyveloseb. Abequosec. 2keto‐3‐deoxyoctanoated. Teichoicacid

5. Glycosidicbondbetweengalactoseandglucoseinlactoseisa. α1–4b. β1–4c. α1–2d. β1–2

6. Whichofthefollowingisasugaralcohol?a. Arabitolb. Manitolc. Sorbitold. Allofthesewww.ea

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7. Minimumnumberofcarbonsrequiredforanaldosesugartohaveacyclicstructureis

a. 3b. 4c. 5d. 6

8. ThereservefoodmaterialsofRhodophyceae(redalgae)isa. Laminarinb. Chrysolaminarinc. Floridianstarchd. Starch

9. Reservefoodmaterialoffungiis_______a. Glucoseb. Starchc. Laminarind. Glycogen

10. GlycosidicbondinTrehaloseisa. α1–4b. α1–2c. α1–1d. β1–2

11. Whichofthefollowingisanon‐reducingsugara. Maltoseb. Lactosec. Trehalosed. Cellobiose

12. Adisaccharideofgalactoseandfructosejoinedbyβ1–4glycosidiclinkage:a. Trehaloseb. Lactulosec. Gentiobiosed. Melibiose

13. Whichofthefollowingsugardonotformcyclicstructurea. Erythruloseb. Dihydroxyacetonec. Both(a)and(b)d. Erythrose

14. Adisaccharideoftwoglucosemoleculesjoinedbyβ1–6glycosidiclinkage:a. Trehalosewww.ea

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b. Gentiobiosec. Lactulosed. Melibiose

15. GlycerolmoietiesinTeichoicacidofbacterialcellwallarelinkedeachotherbya. Etherbondsb. Esterbondsc. Phosphodiesterbondsd. Glycosidicbonds

16. Adisaccharideofgalactoseandglucoseinα1–6glycosidiclinkage:a. Lactoseb. Melibiosec. Gentiobiosed. Verbascose

17. WhichofthefollowingsequencecorrectlyrepresentthesweetnessofGlucose,SucroseandFructose

a. Glucose<Sucrose<Fructoseb. Sucrose<Glucose<Fructosec. Glucose≤Sucrose<Fructosed. Glucose>Fructose>Sucrose

18. Aftertheosazonetest,thesamplesugargaveneedleshapedcrystals,thesamplesugarwillbe

a. Glucoseb. Fructosec. Maltosed. Cellulose

19. PartialfermentationofcanesugarbyLeuconostocmesenteroidesproducea. GlucoseandFructoseb. GlucoseandGluconicacidc. FructoseandGluconicacidd. Dextran

20. WhichofthefollowingcommonlyactsastheprecursorforthesynthesisofVitaminC(Ascorbicacid)inplants:

a. Fructoseb. Ribosec. Glucosed. Ribulose

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