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MCQonLipids,Fats&WaxesBiochemistryMCQ008
(MultipleChoiceQuestionsinBiology/LifeScience)(Sample/Model/PracticeQuestionsforJRF/NETLifeScienceExamination,ICMRJRF,DBTBETJRF,GATE,ICARNET,PGEntrance)
1. Which of the followingmolecule can act asmolecular chaperons
for assisting thefoldingofproteins?
a. Carbohydratesb. Vitaminsc. Lipidsd. Amides
2. Which of the following macromolecule can be most structurally
diverse amonglivingworld?
a. Carbohydratesb. Proteinsc. Nucleicacidsd. Lipids
3. Fatstoringcellsofvertebratesarecalleda. Hepatocytesb.
Asterocytesc. Adipocytesd. Melanocytes
4.
Theenzymeabundantlydistributedinadipocytesandgerminatingseedsarea.
Proteasesb. Lipasec. Cellulased. Nuclease
5. Rancidityoflipidsoflipidrichfoodstuffsisdueto:a.
Hydrogenationofunsaturatedfattyacidsb. Reductionoffattyacidsc.
Oxidationoffattyacidsd. Dehydrogenationofsaturationfattyacids
6. Mainfunctionofpreenglandsinbirdsisa. Hormonesecretionb.
Fattyaciddegradationc. Waxsecretionww
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BiochemistryMCQ008 Printless SavepaperSavetrees
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d. Pigmentsynthesis7. Whichofthefollowingstatementistrue
a.
Oxidativerancidityisobservedmorefrequentlyinanimalfatsthanvegetablefats
b.
Oxidativerancidityisobservedmorefrequentlyinvegetablefatsthananimalfats
c. Plantsfatsadonotundergooxidativerancidityd. Oxidative
rancidity can be effectively checked by dehydrogenation of
fatty
acids8.
NumberofmilligramsofKOHrequiredtoneutralizefattyacidpresentin1goffatis
calleda. Potassiumnumberb. Acidnumberc. Saponificationnumberd.
Iodinenumber
9.
SaponificationnumberisthenumberofmilligramsofKOHrequiredtosaponify1gfat.Whichofthefollowingstatementistrueaboutsaponificationnumber?
a.
Theshorteristhechainlengthoffattyacidsthehigheristhesaponificationnumber
b. The shorter is the chain length of fatty acids, the lower
will be thesaponificationnumber
c.
Thehigherthechainsaturationoffattyacid,thelowerwillbesaponificationnumber
d. The lower is the saturation of fatty acid, the higher will be
saponificationnumber
10. Thedegreeofunsaturationoflipidcanbemeasuredas____________.a.
Saponificationnumberb. Iodinenumberc. Polenskenumberd.
ReichertMeissilNumber
11. ThenumberofOHgroupinfatscanbeexpressedas_____________.a.
Polenskenumberb. ReichertMeissilnumberc. Acetylnumberd.
Iodinenumber
12. Polenskevalueoffattyacidindicates__________.a.
Howmuchunsaturationisthereinthefattyacidb.
Levelofsaturationinthefattyacidww
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BiochemistryMCQ008 Printless SavepaperSavetrees
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c. Indicationofbranchingoffattyacidinthefatd.
Howmuchvolatilefattyacidcanbeextractedthroughsaponification
13. Whichofthefollowingisanexampleforderivedlipids?a. Steroidsb.
Terpenesc. Carotenoidsd. Allofthese
14. Naturallyoccurringfatsare______a. Ltypesb. Dtypesc.
AnequimolarmixtureofLandDtypesd. Symmetric
15. Generally fats with unsaturated fatty acids are ____________
at room temperature(25oC)
a. Solidb. Liquidc. Liquidinthepresenceofoxygend.
Liquidintheabsenceofoxygen
16. Carnaubawaxisanexamplefor__________a. Liquidwaxb. Softwaxc.
Hardwaxd. Archaebacterialwax
17. Specificgravityoflipidis________.a. 0.2b. 0.8c. 1.0d.
1.5
18. Greaterthenumberofcarbonatominchainoffattyacid__________a.
Theboilingpointwillbehigherb. Theboilingpointwillbelesserc.
Themeltingpointwillbehigherd. Themeltingpointwillbelower
19. Dietaryfatsaretransportedasa. Chylomicronsb. Liposomesc.
Lipidglobulesd. Oildropletsww
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BiochemistryMCQ008 Printless SavepaperSavetrees
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20. Betaoxidationoffattyacidstakesplaceata. Peroxisomeb.
Mitochondriac. MitochondriaandPeroxisomed.
Mitochondria,PeroxisomeandER
Foranswerkeyanddetailedexplanations,pleasevisit:www.easybiologyclass.com
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BiochemistryMCQ008 Printless SavepaperSavetrees
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