Exam (elaborations)
BIOCHEM FINAL MULTIPLE CHOICE QUESTIONS WITH VERIFIED ANSWERS.
- Course
- Institution
BIOCHEM FINAL MULTIPLE CHOICE QUESTIONS WITH VERIFIED ANSWERS.
[Show more]
Content preview
BIOCHEM FINAL MULTIPLE CHOICEQUESTIONS WITH VERIFIED ANSWERS
Two mmproteins mmthat mmhave mmthe mmsame mmMW mmbut mmdiffer mmin mmtheir mmpI
mmare mmbest mmseparated mmby:
a. mmSDS mmPAGE
b. mmDialysis
c. mmGel mmExclusion mmChromotography
d. mmMALDI mmMS
e. mmCarboxymethyl mmCation mmExchange mmChromotography mm- mmAnswerE
When mman mmenzymatic mmactivity mmis mmpurified mmfrom mma mmcomplex mmmixture mmof
mmproteins mmwhat mmusually mmhappens mmto mmthe mmtotal mmamount mmof mmprotein
mmand mmthe mmspecific mmactivity mmduring mmthe mmpurification mmprocess?
a. mmThe mmtotal mmamount mmof mmprotein mmand mmthe mmspecific mmactivity mmboth
mmdecrease
b. mmThe mmtotal mmamount mmof mmprotein mmand mmthe mmspecific mmactivity mmboth
mmincrease
c. mmThe mmtotal mmamount mmof mmprotein mmdecreases mmand mmthe mmspecific mmactivity
mmincreases
d. mmThe mmtotal mmamount mmof mmprotein mmincreases mmand mmthe mmspecific mmactivity
mmdecreases
e. mmThe mmtotal mmamount mmof mmprotein mmdecreases mmand mmthe mmspecific mmactivity
mmremains mmconstant mm- mmAnswerC
All mmof mmthe mmfollowing mmare mmtrue mmstatements mmabout mmcollagen, mmEXCEPT:
a. mmIts mmtertiary mmstructure mmis mmstabilized mmby mminterstrand mmhydrogen mmbonds
mmbetween mmbackbone mm(N-H mmand mmC=O)
b. mmIts mmprimary mmstructure mmis mmrich mmin mmglycine mmresidues mm(~1 mmout mmof
mm3)
c. mmIts mmstructure mmdoes mmnot mminclude mmbeta mmsheets
d. mmIts mmtertiary mmstructure mmconsists mmof mmtwo mmhelices mmthat mmwind mmaround
mmeach mmother
,e. mmIt's mma mmstrong mmprotein mmfound mmin mmconnective mmtissue, mmbone, mmand
mmthe mmextracellular mmmatrix mm- mmAnswerD
Proline mmhas mma mmlimited mmnumber mmof mmallowed mmconformations mmcompared
mmto mmother mmamino mmacids mmbecause mm
a. mmIt mmhas mma mmrelatively mmbulky mmside mmchain mmcompare mmto mmothers
b. mmIt mmis mman mmaliphatic mmamino mmacid mmchain mmthat mmavoids mmwater mmcontact
c. mmIts mmside mmchain mmis mmlinked mmto mmthe mmalpha mmamino mmgroup
d. mmIts mmside mmchain mmhas mma mmchiral mmcarbon
e. mmThe mmalpha mmamino mmgroup mmis mmcharged mmalong mmthe mmpeptide
mmbackbone mm- mmAnswerC
In mma mmstable, mmright mmhanded mmalpha mmhelix, mmthe mmR mmgroups:
a. mmTend mmto mmcontribute mmto mma mmlow mmPONDR mmscore
b. mmProject mminto mmthe mminterior mmof mmthe mmhelix
c. mmAlternate mmbetween mmthe mmoutside mmand mmthe mminside mmof mmthe mmhelix
d. mmCan mmform mmion mmpairs mmif mmthey mmare mmat mmposition mmi mmand mmi+2
e. mmHave mma mmhigher mmtendency mmto mmform mmaggregates mmthan mmR mmgroup mmin
mmbeta mmsheets
f. mmAre mmresponsible mmto mmthe mmhelix mmdipole mm- mmAnswerA
A mmRamachandran mmplot mmdescribes, mmfor mma mmparticular mmamino mmacid, mmthe
mmsterically mmpermitted mmangles mmfor:
a. mmRotation mmabout mmthe mmCalpha-C mmbond
b. mmRoation mmabout mmthe mmN-Calpha mmbond
c. mmRotation mmabout mmthe mmC-N mmbond
d. mmBoth mma mmand mmb
e. mmBoth mma mmand mmc
f. mmBoth mmb mmand mmc
g. mmAll mmthree: mma, mmb, mmand mmc mm- mmAnswerD
L-Dopa mmis mman mmoral mmmedication mmused mmto mmtreat mmParkinson's mmdisease,
mmthe mmsymptoms mmwhich mmresult mmfrom mma mmlack mmof mmdopamine mmin mmthe
mmbrain. mmL-Dopa mmrelies mmon mmL-type, mmor mmleucine-preferring, mmtransport
mmproteins mmto mmcross mmthe mmblood-brain mmbarrier, mmand mmit mmis mmconverted mmto
mmdopamine mmin mmthe mmbrain mmby mmthe mmenzyme mmaromatic-L-amino mmacid
mmdecarboxylase. mmIdentify mmthe mmproperties mmof mmits mmenantiomer mmD-Dopa.
mmSelect mmALL mmthat mmapply:
a. mmHighly mmsoluble mmin mmwater
b. mmReduces mmsymptoms mmof mmParkinson's mmdisease
c. mmRotates mmplan-polarized mmlight mmcounterclockwise mm
d. mmSolid mmat mmroom mmtemperature
, e. mmAromatic-L-amino mmacid mmdecarboxylase mmhas mma mmdifferent mmaffinity mmfor
mmD-Dopa
f. mmDensity mmis mmless mmthan mmthat mmof mmL-Dopa mm- mmAnswerD
E
Synthetic mmpolypeptides mmcan mmassume mman mmalpha-helical mmstructure mmunder
mmappropriate mmconditions. mmIndicate mmwhich mmof mmthe mmfollowing mmwill mmform
mman mmalpha-helix mmat mmthe mmindicated mmpH mmvalues. mmCircle mmall mmthat mmapply:
Polylysine mmat mmpH mm2
Polylysine mmat mmpH mm7
Polylysine mmat mmpH mm13 mm- mmAnswerPolylysine mmat mmpH mm13
Which mmligand mmbinds mmtightest mmto mmits mmprotein?
a. mmLigand mmA, mmwith mma mmKd= mm10^-3M
b. mmLigand mmB, mmwith mma mmKd=10^-8M
c. mmLigand mmC, mmwith mma mmpercent mmoccupancy mmof mm50% mmat mm1uM
d. mmLigand mmd, mmwith mma mmpercent mmoccupancy mmof mm60% mmat mm1nM
e. mmLigand mmE, mmwith mma mmpercent mmoccupancy mmof mm90% mmat mm1mM mm-
mmAnswerD
Carbon mmmonoxide
a. mmbinds mmto mmHb mmirreversibly mmand mmcannot mmbe mmremoved mmeven mmin mmhigh
mmO2 mmpressure
b. mmCompetes mmwith mmBPG mmfor mmbinding mmto mmHb
c. mmBinds mmmore mmtightly mmthan mmO2 mmto mmheme mmand mmto mmhemoglobin
d. mmBinds mmto mmHb mmand mmalters mmits mmstructure mmso mmthat mmit mmis mmsimilar mmto
mmthe mmstructure mmof mmHbS
e. mmPoisoning mmin mma mmpatient mmcan mmonly mmbe mmdetected mmby mmlaboratory
mmanalysis mmbecause mmit mmis mma mmcolorless mmand mmodorless mmgas mm- mmAnswerC
Which mmof mmthe mmfollowing mmis mmTRUE mmabout mmthe mmdifferences mmbetween
mmELISA mmand mmWestern mmImmunoblot mmassays?
a. mmOnly mmWestern mmblots mmallow mmfor mmdetection mmof mmprotein mmantigens
b. mmOnly mmWestern mmImmunoblots mmare mmused mmto mmmeasure mmamount mmof
mmantigen mmpresent
c. mmOnly mmELISA mmassays mmrequire mma mmnitrocellulose mmmembrane
d. mmA mmsecondary mmantibody mmis mmonly mmused mmon mmELISA mmassays
e. mmOnly mmWestern mmblots mmenable mman mmapproximation mmof mman mmantigen's
mmmolecular mmweight mm- mmAnswerE
Which mmof mmthe mmfollowing mmis mmNOT mma mmfactor mmthat mmhelps mmexplains mmhow
mmenzymes mmincrease mmreaction mmrates:
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller LucieLucky. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
84669 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now