Biotech Multiple Choice Questions

Multiple Choice Questions - CHOOSE THE

  ANSWER

1. Which of the following stte!ents "oes not "esc#i$e  p#ope#t% o# ch#cte#istic of glucose. & 'lucose is n l"oheptose. l"oheptose. $& 'lucose hs two enntio!e#s( )-'lucose n" *-'lucose. c& 'lucose is the !ost co!!on ntu#ll% occu##ing !onoscch#i"e in ntu#e. "& 'lucose is sto#e" in the $o"% s gl%cogen.

,. Al"oses #e sug#s+ & hing n l"eh%"e functionl g#oup. $& hing onl% si c#$on to!s pe# !olecule. c& which lw%s gie  positie Bene"ict/s test s well s  positie Tollen/s test. "& which fo#! the pol%scch#i"e gl%cogen.

0. #uctose is+ & n l"opentose sug#. $&  non #e"ucing sug#. c&  !onoscch#i"e of lctose. "& lso 2nown s leulose.

3. The con"enstion of glctose n" glucose p#o"uces the "iscch#i"e+ & suc#ose $& "et#ose c& lctose "& !ltose

4. Which of the following stte!ents is not t#ue( in gene#l( $out c#$oh%"#tes5 & The% #e !"e up of onl% c#$on( h%"#ogen n" o%gen to!s. $& Thei# o%gen to h%"#ogen #tio of $out ,+,. c& Thei# solu$ilit% in wte# is  #esult of the !n% h%"#o%l g#oups "ispe#se" th#ough out the !olecule. "& The% cn $e clssifie" eithe# cco#"ing to thei# length o# functionl g#oup.

6. Which of the following ch#cte#istics of chi#lit% is

 t#ue5

& The c#$on to! is single $on"e" to fou# "iffe#ent to!s o# g#oups of to!s. $& The chi#l c#$on to! is si" to $e unstu#te". c& Chi#l !olecules he opticll% ctie iso!e#s. "& Chi#l !olecules he two enntio!e#s.

7. A co!poun" whose !olecul# st#uctu#e #ottes pol#i8e" light counte#cloc2wise+ & is "esignte" s $eing "et#o#otto#%. $& lw%s hs two chi#l c#$on cente#s. c& is "esignte" s $eing leo#tto#%. "& $elongs to the !ost $un"nt o# ntu#ll% occu##ing g#oup of c#$oh%"#te enntio!e#s.

9. Coo2e" foo"s #e esie# to "igest $ecuse+ & c#$oh%"#tes #e solu$le in wte#. $& in"igesti$le pol%scch#i"es( such s st#ch n" cellulose he $een co!pletel% o# p#til h%"#ol%8e" to !ltose.

c& heting "est#o%s the c#$on%l $on" within these co!poun"s. "& the gl%cosi"ic lin2ges he con"ense" p#o"ucing  !itu#e of "et#in( !ltose n" glucose.

:. The s!llest unit n% c#$oh%"#te cn $e h%"#ol%8e" to is + & !onoscch#i"e $& "iscch#i"e c& glucose "& he!icetl

1;. The ctul #ing st#uctu#e of  c#$oh%"#te is not  t#ue #ing shpe s is "#wn when using the fo#!uls( $ut #ell% shoul" $e "#wn in  fo#!. & ische# p#o
11. Which of the following stte!ents enntio!e#s+

 ccu#tel% ch#cte#i8e o# "esc#i$e

& When enntio!e#s #e e=ull% !ie" togethe# the% $eco!e opticll% ctie. $& Enntio!e#s #e co!poun"s who he  !i##o# i!ge o# twin-li2e !olecul# st#uctu#es. st#uctu#es. c& >n ntu#e( enntio!e#s ten" to illicit e#% "iffe#ent #esponses in o#gnis!s. "& Enntio!e#s he i"enticl che!icl n" ph%sicl p#ope#ties.

1,. 'lucose is sto#e" in the $o"% s+

& suc#ose $& lctose c& st#ch "& gl%cogen

10. The "esigntions lph n" $et in"ictes whethe# the on the c#$on nu!$e#e" s ?1 in  !onoscch#i"e is o# the plne of the !olecule. & c#$on%l g#oup( within( outsi"e $& chi#l g#oup( $oe( within c& h%"#o%l g#oup( $elow( $oe "& o%gen to!( $elow( outsi"e

13. The "esigntions lph n" $et in"ictes the position of the $etween two !onoscch#i"es in  . & h%"#o%l g#oup( colent $on" $& o%gen to!( gl%cosi"ic lin2ge c& c#$on%l g#oup( pol# colent $on" "& c#$on to!( $#nche" lin2ge

14. To !2e so!e st#ches !o#e solu$le( phosphte este# g#oups #e inse#te" into these st#ight-chin !olecules. >nse#ting phosphte este# g#oups . & "is#upts the !olecule/s inte#!olecul# fo#ces the#e$% pe#!itting wte# to "ispe#se within the chin !o#e effectiel%. $& chnges the che!icl co!position of the st#ches( the#e$% "ec#esing thei# pol#it%. c& lte#s thei# opticl #ectiit% n" thus cuses thei# solu$ilit% to inc#ese.

"& ll of the $oe #e t#ue.

16. The Bene"ict/s test is use" to "ete#!ine whethe# o# not  !ono o# "iscch#i"e is + & si!ple sug# $& #e"ucing sug# c& pentose sug# "& pol%h%"#o%l sug#

17. The finl p#o"uct p#o"uce" when st#ch is co!pletel% h%"#ol%8e" is+ & "et#in $& suc#ose c& glucose "& c#$on "ioi"e

19. A gl%cosi"ic lin2ge is $etween two !onoscch#i"es. &  pol# colent $on" $& is  t#ue colent $on" c&  ionic $on" "& is  h%"#ogen $on"

1:. #uctose is lso 2nown s leulose. This n!e suggest tht f#uctose !ost $un"nt enntio!e#+ & #ottes pol#i8e light cloc2wise. $& #ottes pol#i8e" light counte#cloc2wise.

c& is n l"opentose sug#. "& is  2etoheptose sug#.

,;. The #ections of photos%nthesis+ & p#o"uce c#$on "ioi"e n" glucose. $& cn $e clssifie" into two ctego#ies - light n" "#2. c& ll #e=ui#e #"int ene#g% to p#ocee". "& ll t2e plce in the plnt/s !itochon"#i.

,1. The#e is @n& #eltionship $etween the nu!$e# of unstu#te" $on"s in  ftt% ci" n" thei# !elting point. As the "eg#ee of unstu#tion in the ftt% ci"/s c#$on chin( its !elting point will . & "i#ect( "ec#eses( lso "ec#ese $& "i#ect( inc#eses( lso inc#ese c& ine#se( "ec#eses( inc#ese "& ine#se( inc#eses( "ec#ese

,,. Sop i!p#oes the clensing powe# of wte#( $ecuse sop !olecules he two po#tions+ &  h%"#opho$ic til n"  h%"#ophilic he" $&  h%"#ophilic til n"  h%"#opho$ic he" c&  so"iu! slt til n"  h%potonic he" "&  potssiu! slt til n"  h%pe#tonic he"

,0. Which of the following stte!ents is

 $out  ft o# oil/s io"ine nu!$e# test+

& >t is  !esu#e of the "eg#ee of unstu#tion in  ft o# oil. $& >t is the !ount of io"ine in g#!s tht will #ect with 1;; g#!s of sponifi$le lipi". c& >t is n io"intion""ition che!icl #ection. "& The l#ge# the lue of the io"ine nu!$e# the fewe# the nu!$e# of "ou$le $on"s p#esent in the ft o# oil.

,3. Oils cn $e cone#te" to soli" fts $%+ & hlogention $& h%"#ogention c& h%"#tion "& h%"#ol%sis

,4. A =ulittie test fo#  ft o# oil is the & tollen/s test. $& io"inest#ch test. c& $ene"ict/s test. "& io"ine nu!$e# test.

,6. t !et$olis! "iseses( such s the T%-Schs "isese( #e !ost often ssocite" with hing  "eficienc% in specific en8%!es which h%"#ol%8e . >n T%-Schs( the en8%!e -glctosi"se( is !issing o# is p#esent in et#e!e low =untities. & phospholipi"s $& choleste#ol c& gl%colipi"s "& t#igl%ce#i"es

,7. 'l%ce#ol is n lcohol which cn $e clssifie" s t#iol. T#iols #e lcohols which he+ & t#iple $on"s within the !olecule. $& th#ee c#$on to!s in the !olecule. c& th#ee h%"#o%l g#oups "ispe#se" th#oughout the !olecule. "& th#ee c#$on%l g#oups g#oup within the !olecule/s c#$on chin.

,9. A ftt% ci" tht contins  !itu#e of single n" "ou$le $on"s is si" to $e+ & unstu#te". $& stu#te". c& nonsponifi$le. "& sponifi$le.

,:. T#igl%ce#i"es #e gl%ce#ols which he h" of thei# h%"#o%l g#oups este#ifie" with ftt% ci"s. & none $& one c& two "& ll

0;. tt% ci"s #e long chine"+ & !ine#l ci"s. $& c#$o%lic ci"s. c& phospho#ic ci"s.

"& we2 ci"s.

01. The $on" $etween  gl%ce#ol !olecule n"  ftt% ci" in  lipi" is clle" + & gl%ce#i"e $on" $& h%"#ogen $on" c& este# $on" "& gl%cosi"ic $on"

0,. Choleste#ol is s%nthesi8e" f#o! the co!poun" . & cet%l coen8%!e A @cet%l-CoA& $& choleste#olse c& te#pene "& ste#ol

00. A lipi" is  ft o# oil which cn un"e#go h%"#ol%sis in l2line solutions. When t#igl%ce#i"es un"e#go h%"#ol%sis in n l2line solution n" the slts of the #e p#o"uce". & nonsponifi$le( gl%ce#i"e( ftt% ci"s $& nonsponifi$le( gl%ce#ol( c%l ftt% ci"s c& sponifi$le( gl%ce#ol( ftt% ci"s "& sponifi$le( gl%ce#i"e( c%l ftt% ci"s

03. The #nci"it% of fts n" oils is cuse" eithe# $% the o# the of the lipi"/s ftt% ci"s !olecules. & h%"#tion( #e"uction

$& h%$#i"i8tion( #efletion c& h%"#ogention( oi"tion "& h%"#ol%sis( oi"tion

04. The h%"#ogention of @n& ftt% ci" cone#ts ll the $on"s to ( $on"s. & stu#te"( "ou$le( stu#te"( single $& stu#te"( single( unstu#te" "ou$le c& unstu#te"( "ou$le( stu#te"( single "& unstu#te"( single( unstu#te"( "ou$le

06. Which is

  ch#cte#istic of  lipi"5

& *ipi"s #e solu$le onl% in non pol# solents such s $en8ene $& *ipi"s #e  "ie#sifie" g#oup of co!poun"s( whose co!!on ch#cte#istic is tht the% #e insolu$le in wte#. c& *ipi"s #e high sou#ces of ene#g% fo# the cell. "& *ipi"s cn $e clssifie" s eithe# $eing nonsponifi$le o# sponifi$le.

07. nstu#te" ftt% ci"s #e often g#oupe" $% the n" of $on"s within the !olecule/s c#$on chin. & nu!$e#( t%pe( single $& nu!$e#( plce!ent( "ou$le c& nu!$e#( plce!ent( single "& nu!$e#( t%pe( "ou$le

09. An unstu#te" ftt% ci" gien the sho#thn" co"e of @13+3n-,& !ens this p#ticul# ftt%

ci" hs c#$on to!s( $on"s( with the fi#st "ou$le $on" $eginning t the c#$on f#o! the !olecule/s !eth%l en". & 13( , single( secon" $& 13( , "ou$le( fou#th c& 13( 3 "ou$le( secon" "& 13( 3 single( fou#th

0:. A si!ple sponifi$le lipi" "iffe#s f#o!  co!poun" sponifi$le lipi" $% the p#o"ucts it %iel"s when it un"e#goes+ & sponifiction $& h%"#ol%sis c& h%"#ogention "& h%"#tion

3;. Which of the following che!icl su$stnces

 $e clssifie" s  lipi"5

& $eef tllow $& linsee" oil c& lnolin "& !%lose

31. When "ete#!ining the io"ine nu!$e# fo# n unstu#te" ftt% ci"( it is the of the !olecule tht #ects with the io"ine. & c#$o%lic ci" $& h%"#o%l g#oup c& l2ene $on"s

"& l2ne $on"s

Questions ?3, th#ough 30 'ien the following ftt% ci"+ CH0CH,CHCHCH,CHCHCH,CHCH@CH,&7COOH 3,. The sho#thn" fo#!ul co"e "esc#i$ing this !olecule is+ & @1,+:n-0& $& @10+0n-0 c& @14+0n-:& "& @19+n-0&

30. An este#ifiction #ection with the two !oles of the $oe ftt% ci" one !ole of gl%ce#ol n" one !ole of glctose woul" p#o"uce + & si!ple lipi" $& nonsponifi$le lipi" c& gl%colipi" "& ste#ol

Questions ?33 th#ough ?34 tt% ci" l$ele" ?1 hs n io"ine nu!$e# of 194( whe#es ftt% ci" l$ele" ?, hs n io"ine nu!$e# of 10;. 33. tt% ci" ?1+ & hs  highe# !elting point thn ftt% ci" ?, $& hs  lowe# !elting point thn ftt% ci" ?,

c& hs the s!e !elting point s ftt% ci" ?, "& not enough info#!tion gien

34. tt% ci" ?,+ & hs  g#ete# "eg#ee of unstu#tion thn ftt% ci" ?1 $& hs  g#ete# "eg#ee of stu#tion thn ftt% ci" ?1 c& hs the s!e "eg#ee of stu#tion s ftt% ci" ?1 "& not enough info#!tion gien

Questions ?36 th#ough ?4; 'ien the following !ino ci" n" thei# l2%l @-R& g#oups+ lnine -CH0 sp#gine -CH, - COOH se#ine -CH, - OH l%sine -@CH,&3 - NH, 36. The !ino ci" which woul" $e lest solu$le in wte#.

37. The !ino ci" when un"e#going n oi"tion #ection woul" %iel"  l"eh%"e g#oup.

39. The !ino ci" whose che!icl n" ph%sicl p#ope#ties #e !ost si!il# to ethn!ine+

3:. The !ino ci" whose p> woul" $e the !ost ci"ic.

4;. The !ino ci"@s& which when plce" in n elect#ic fiel" t  pH of 7 woul" !ig#te tow#"s the positie pole.

Questions ?41 th#ough ?44 'ien the following+ Dhe-Asn-Al-His 41. The $oe !ino ci" se=uence in n e!ple of + & pepti"e $& "ipepti"e c& t#ipepti"e "& oligopepti"e

4,. >f the $oe !olecule we#e to $e plce" in n elect#ic fiel"  pH of 7 the !olecule woul" !ost li2el%+ & !ig#te tow#"s the positie pole. $& !ig#te tow#"s the negtie pole. c& not !ig#te t ll. "& not go into solution.

40. The N-te#!inl en" of the $oe !olecule is the !ino ci"+ & Al $& Dhe c& His "& Asn

43. The $oe !ino ci" se=uence is n e!ple of  p#otein/s+ & p#i!#% st#uctu#e $& secon"#% st#uctu#e

c& te#ti#% st#uctu#e "& =ute#n#% st#uctu#e

44. The 8witte#ion st#uctu#e of the $oe !olecule is+ & H0N-Dhe-Asn-Al-His-COOH $& H,N-Dhe-Asn-Al-His-COOc& H0N-Dhe-Asn-Al-His-COO"& H,N-Dhe-Asn-Al-His-COO-

46. 'ien the following !ino ci"s n" thei# l2%l @-R& g#oups gl%cine @R g#oup is -H& sp#tic ci" @R g#oup is -CH,COOH& se#ine @R g#oup is -CH,OH& l%sine @R g#oup is -@CH,&3NH,& The !ino ci" which is opticll% inctie is+ & gl%cine $& sp#tic ci" c& se#ine "& l%sine

47. Which of the following is not  ch#cte#istic of  glo$ul# p#otein. & The% #e solu$le in wte#. $& Thei# function is p#i!#il% one of p#otection n" st#uctu#e. c& M%oglo$in is n e!ple of  glo$ul# p#otein. "& >ts =ute#n#% n" te#ti#% st#uctu#e pl% n i!po#tnt #ole in its functionlit%.

49. Which of the following is not n inte#ction o# lin2ge o$se#e" in !intining  p#otein/s te#ti#% st#uctu#e+ & "isulfi"e $#i"ges $& h%"#opho$ic inte#ctions c& h%"#ogen $on"ing "& ionic $on"ing

4:. The ionic inte#ctions $etween l%sine/s !ino g#oup n" sp#tic ci"/s c#$on%l g#oup #esult in the fo#!tions of in  p#otein/s te#ti#% st#uctu#e. & h%"#ophilic $#i"ges $& !i"e lin2ges c& slt $#i"ges "& pepti"e lin2ges

6;. The inte#ction o# $on"ing !ost p#elent in  p#otein/s secon"#% st#uctu#e is+ & !i"e lin2ge $& "isulfi"e $#i"ges c& slt $#i"ges "& h%"#ogen $on"ing

61. O#gnic #egents( such s ethnol( he the g#etest "is#uptie effect on  p#otein/s ntie configu#tion $ecuse+ & the% "is#upt the "isulfi"e $#i"ges $etween c%steine !olecules. $& the% inte#fe#e with the h%"#opho$ic inte#ctions $etween the non pol# !ino ci" si"e

chins. c& the% "is#upt the h%"#ogen $on"ing n" slt $#i"ges $etween the p#otein/s !ino ci"s. "& the% "is#upt the !i"e lin2ges $etween the in"ii"ul !ino ci"s.

6,. The $on" $etween in"ii"ul !ino ci" !olecules is clle"  pepti"e $on". A pepti"e $on" is @n& & este# $on" $& !i"e $on" c& ionic $on" "& !ine $on"

60. A p#otein/s te#ti#% st#uctu#e cn $e "esc#i$e" s+ & its !ino ci" se=uence $& the sptil ##nge!ent of its su$units c& its fol"ing ptte#n "& its helicl st#uctu#e

63. )entu#tion is the "is#uption of  p#otein/s te#ti#% st#uctu#e. Which of the following solents woul" not he "entu#e  p#otein. & ethnol $& cetone c& cetic ci" "& wte#

64. A p#otein is solu$le t its . & !ost( no#!l pH $& lest( no#!l pH c& lest( p> "& !ost( p>

66. Which of the following is not p#t of n en8%!e !olecule. & coen8%!e $& poen8%!e c& p#oen8%!e "& cofcto#

67. Which of the following

 "esc#i$e the ctie site of n en8%!e+

& >t is enntio!e# specific. $& Onl% one ctie site eists pe# en8%!e !olecule. c& >t is the #e whe#e the su$st#te n" en8%!e inte#ct. "& >ts configu#tion o# shpe is "ete#!ine" $% the p#otein/s p#i!#% st#uctu#e.

69. Which of the following stte!ents & All en8%!tic ctiit% #e=ui#es the use of cofcto#s. $& The poen8%!e is  p#t of ll en8%!es. c& D#oen8%!es #e ctie en8%!es. "& Holoen8%!es #e inctie en8%!es.

Questions ?6: th#ough ?70 'ien the following gene#l clssifiction of en8%!es+ oi"ses iso!e#ses pepti"ses h%"#olses "eh%"#ogenses este#ses 6:. Ri$onuclese h%"#ol%8es #i$onucleic ci"s. >ts en8%!es is p#t of  clss of en8%!es 2nown s the . 7;. En8%!es which ctl%8e the #e!ol of h%"#ogen to!s f#o!  su$st#te $elong to the  g#oup of en8%!es. 71. The !i"e lin2ges $etween !ino ci" g#oups in  p#otein #e e#% st$le n" ine#t f#o! chnges in pH( solents n" slt concent#tions. These $on"s cn $e $#o2en $% the . 7,. >n o#"e# fo# o%gen to co!$ine with  su$st#te it !ust $e ctite" $% this clss of en8%!es( the . 70. o# *-f#uctose to $e use" s  sou#ce of ene#g%( it is so!eti!es cone#te" to )-glucose. The clss of en8%!es #esponsi$le fo# the cone#sion of *-f#uctose to )-glucose woul" $e the . 73. When n !ino ci"/s functionl g#oup t the en8%!e/s ctie site o#  cofcto#( such s i#on( #e "est#o%e" o# pe#!nentl% lte#e"( the en8%!e/s functionlit% "ecese. This t%pe of en8%!e inhi$ition is #efe##e" to s . & "entu#tion inhi$ition $& i##ee#si$le inhi$ition c& #ee#si$le inhi$ition "& ctie site inhi$ition

74. inhi$ition of  en8%!e/s ctiit% cn #esult f#o! eithe# inhi$ition( whe#e n inhi$ito# lte#s the te#ti#% shpe of the en8%!e o# inhi$ition( whe#e n inhi$ito# ies with the su$st#te fo# the en8%!e/s ctie site. & >##ee#si$le( co!petitie( nonco!petitie

$& >##ee#si$le( nonco!petitie( co!petitie c& Ree#si$le( co!petitie( nonco!petitie "& Ree#si$le( nonco!petitie( co!petitie

76. The use of nti$iotics to fight $cte#i infections n" 4-flu#ou#cil( n nti!et$olite use" to "est#o% cnce# cells( $oth wo#2 $% n en8%!e/s ctiit%. & i##ee#si$l% inhi$iting $& "est#o%ing c& #ee#si$l% inhi$iting "& "entu#li8ing

77. The o# en8%!e is inhi$ite" $% the finl o# en" p#o"uct of  !ultien8%!e step !et$olic p#ocess. This t%pe of en8%!e ctiit% inhi$ition is #efe##e" to s inhi$ition. & #egulto#%( lloste#ic( fee"$c2 $& poen8%!e( #egulto#%( nonco!petitie c& coen8%!e( lloste#ic( co!petitie "& p#oen8%!e( su$st#te-$on"( i##ee#si$le

79. Which of the following stte!ents is not t#ue $out lloste#ic en8%!es. & The% cn $e inhi$ite" $% the en" p#o"uct of  !et$olic p#ocess the% initill% ctl%8e". $& The% #e usull% l#ge( co!ple( high !olecul# weight holoen8%!es. c& Thei# flei$ilit% llows the! to "ectite n en8%!e/s ctie site( thus !2ing the site !o#e o# less #eceptie to the su$st#te. "& The% he onl% one site of ttch!ent fo# $oth the su$st#te n" the #egulto#% en8%!e.

7:. Ho#!ones #e consi"e#e" to $e !essenge#s( whe#es c%clic AMD cts s  !essenge#. C%clic A!p is ctite" onl% when  ho#!one . & p#oen8%!e( int#cellul#( psses th#ough the cell !e!$#ne n" ttches itself to  #ecepto# site in the cell/s nucleus. $& p#i!#%( secon"#%( ttches t  specific #ecepto# site on the outsi"e of the cellul# !e!$#ne. c& inte#cellul#( int#cellul#( ttches itself to the en8%!e/s ctie site. "& coen8%!e( p#oen8%!e( psses th#ough the cell !e!$#ne n" ttches itself to the cell/s int#cellul# #ecepto# site.

9;. Which of the following stte!ents

 "esc#i$e  ch#cte#istic of  it!in.

& Fit!ins nee" to $e supple!ente" th#ough "iet $ecuse eithe# the $o"% cn not !nufctu#e the it!in o# it cn not s%nthesi8e sufficient !ounts to p#o!ote cellul# function( g#owth( #epi# n"o# #ep#o"uction. $& Fit!ins cn $e pol# o# non pol#. c& Fit!ins cn ct s coen8%!es in so!e !et$olic #ections. "& Fit!ins #e s!ll o#gnic o# ino#gnic !olecules.

91. The fi#st step in the *oc2 n" Ge% theo#% of en8%!e specificit% cn $e illust#te" $% the following s%!$olic nottion+ & S @su$st#te&

D @p#o"uct&

$& E @en8%!e&  D @p#o"uct& c& E @en8%!e&  S @su$st#te& "& ES @en8%!e-su$st#te co!ple&

ED @en8%!e-p#o"uct co!ple& ES @en8%!e-su$st#te co!ple& E @en8%!e&  D @p#o"uct&

9,. >n n en8%!tic #ection( the ES o# en8%!e-su$st#te co!ple( ctull% #ep#esents+ & the ctite" co!ple in  ctl%8e" #ection.

$& the p#e#ectnt in  ctl%8e" #ection. c& the ene#g% of ctition in  ctl%8e" #ection. "& the lloste#ic en8%!e in  ctl%8e" #ection.

90. A nonco!petitie inhi$ition #ection cn $e s%!$olicll% illust#te" s+ & E @en8%!e&  > @inhi$ito#&

>D @inhi$ito#-p#o"uct co!ple&

$& E> @en8%!e-inhi$ito# co!ple&  D @p#o"uct& @inhi$ito#& c& E @en8%!e&  S @su$st#te&

ED @en8%!e-p#o"uct co!ple&  >

@en8%!e-su$st#te co!ple&

"& ES @en8%!e-su$st#te co!ple&  @inhi$ito#& co!ple&

ES> @en8%!e-su$st#te-inhi$ito#

93. This it!in is essentil fo# the s%nthesis of p#oth#o!$in(  $loo"-clotting gent. & Fit!in B $& Fit!in C c& Fit!in ) "& Fit!in G

94. A "eficienc% of this it!in cn #esult in "efectie collgen. & Fit!in B $& Fit!in C c& Fit!in ) "& Fit!in G

96. Which of the following fcts is not t#ue $out cet%l-CoA. & >t is  two c#$on !olecule. $& >t is  co!!on constituent in the !et$olis! of c#$oh%"#tes( lipi"s n" p#oteins. c& >t is p#o"uce" f#o! the oi"tion of p%#ute to cetic ci" n" fo#!s n este# lin2ge with coen8%!e A. "& >t is the initil step of the cit#ic ci" c%cle.

97. The h%"#ol%sis of high ene#g% co!poun"s( such s ATD+ & p#o"uce twice s !uch ene#g% co!p#e" to othe# phosphte $on"s. $& he  positie H lue. c& #e=ui#e e#o$ic con"itions. "& is n en"othe#!ic p#ocess.

99. The unusull% high !ount of potentil ene#g% sto#e" in  !olecule of ATD+ & is "ue to the inst$ilit% of the !olecule. $& #esults f#o! the specific sptil ##nge!ent of the to!s in the !olecule. c& #esults f#o! the !olecule hing th#ee o%gen to phospho#ous $on"s. "& ll of the $oe.

9:. Which is not  ch#cte#istic of $ile. & Bile slts #e use" to e!ulsif% fts in the s!ll intestines. $& Choleste#ol is  p#ecu#so# fo# $ile slts. c& Bile is  !itu#e of $ile slts( $ile pig!ents( phospholipi"s n" choleste#ol. "& $ile is continuousl% p#o"uce" $% the lie# n" sto#e" in the pnc#es.

:;. The en8%!e #esponsi$le fo# the "igestion of st#ch in the !outh is+ & !%lse $& glucosse c& pepti"se "& c#$o%lse

:1. >nsulin+ & is p#o"uce" $% the lph cells of the pnc#es. $& i"s in the pssge of glucose into #ious o#gns n" tissues c& is ctite" $% the ho#!one glucgon. "& ll of the $oe.

:,. The en" p#o"ucts of the ne#o$ic stge of cellul# #espi#tion #e+ & c#$on "ioi"e( wte# n" ATD $& cet%l-CoA n" ATD c& lctic ci"( wte# n" ATD "& c#$on "ioi"e( wte# n" A)D

:0. Which of the following stte!ents is not t#ue $out gl%col%sis. & >t is n e!e#genc% ene#g%-p#o"ucing p#ocess. $& >t is the fi#st stge of cellul# #espi#tion. c& >t occu#s in the c%topls! of  eu2#%otic cell.

"& >ts en" p#o"ucts #e p%#uic ci"( wte# n" , ATD.

:3. Which of the following stte!ents "oes not "esc#i$e the e#o$ic stge of cellul# #espi#tion. & The site of e#o$ic cellul# #espi#tion is the cell/s !itochon"#i. $& >t occu#s in two in"epen"ent set of !et$olic #ections( the cit#ic ci" c%cle n" the elect#on t#nspo#t chin. c& A totl of 03 ATD !olecules #e p#o"uce" in this stge of cellul# #espi#tion. "& The en" p#o"ucts of the e#o$ic stge of cellul# #espi#tion #e wte#( c#$on "ioi"e n"  ATD.

:4. The elect#on t#nspo#t o# #espi#to#% chin of the e#o$ic oi"tion of glucose+ & p#o"uces the !
:6. The lctic ci" c%cle+ & is nothe# n!e fo# gl%col%sis. $& is n ne#o$ic p#ocess. c& is the finl step in gl%col%sis. "& is n e#o$ic p#ocess.

:7. e#!enttion is+ & n e#o$ic p#ocess

$& is  p#ocess which is si!il# to the cit#ic ci" c%cle. c&  p#ocess whose en" p#o"ucts #e in"epen"ent of the o#gnis! it is t2ing plce. "& is n ne#o$ic p#ocess.

:9. Which of the following ch#cte#istics "esc#i$es lipi" !et$olis!. & The s%nthesis of lipi"s f#o! sto#e" ftt% ci"s in the $o"%/s "ipose tissue is clle" lipogenesis. $& A "%n!ic e=uili$#iu! eists $etween the lipi"s flowing in the $loo" st#e! n" the ftt% ci"s sto#e" in the "ipose tissue. c& *ipi" !et$olis! p#o"uces !o#e ene#g% pe# !ss thn cellul# #espi#tion. "& All of the $oe.

::. The co!plete $et oi"tion of  16-c#$on ftt% ci" woul" %iel" ATD !olecules. & 06 $& 7, c& 113 "& 10;

1;;. Getosis+ & is the !et$olic p#ocess of 2etone $o"ies $eing p#o"uce" f#o! ecess cet%l-CoA. $& is whe#e the pH of the $loo" "#ops $ecuse of the p#esents of ecess 2etone $o"ies. c& "esc#i$es the no#!l ci#cultion of 2etone $o"ies in the $loo" st#e! "& is the h%"#ol%sis of cet%l-CoA to cetone

1;1. The !in "iet#% sou#ce of nit#ogen is+ & the !et$olis! n" $so#ption of !ino ci"s into the $loo" st#e! $& the oi"tion of u#e n" its su$se=uent $so#ption $% the 2i"ne%s c& the ct$olis! n" t#ns!intion of nicin "& the oi"tie "e!intion of !ino ci"s n" thei# eentull% $so#ption into the $loo" st#e!

1;,. #e is+ & the !e"icl n!e fo# u#ine $& is the co!!on n!e fo# !!oni c& is the cone#te" non toic fo#! of !!oni "& is the c#$!%l phosphte of o#nithine

1;0. A!ino ci"s #e s%nthesi8e" f#o! othe# f#ee !ino ci"s n" lso f#o! -2eto ci"s $% . & oi"tie "e!intion $& t#ns!intion c& t#nsltion "& o#nithintion

1;3. The ftt% ci" c%cle #e!oes units pe# c%cle( until the ftt% ci" hs $een co!pletel% oi"i8e". & one c#$on $& one cet%l-CoA c& two c#$on

"& fou# cet%l-CoA

1;4. is the !et$olic pthw% tht p#ep#es !ino ci"s fo# ent#nce into the cit#ic ci" c%cle. & t#ns!intion $& t#ns!i"tion c& oi"tie phospho#%ltion "& oi"tie "e!intion

1;6. Which of the following is not  ch#cte#istic of $oth RNA n" )NA. & The $c2$one fo# ech st#n" of )NA n" RNA is co!pose" of  phosphte g#oup n"  pentose sug# unit. $& Ech nucleic ci" hs  si!il# set of pu#in $se pi#s. c& Ech nucleic ci" "oes eist s  single st#n"( howee#( )NA in its ntie stte is foun" in  "ou$le heli confo#!tion. "& Both nucleic ci"s #e inole" "i#ectl% in the t#nsc#iption p#ocess of p#otein s%nthesis.

1;7. #e the nit#ogen-contining $ses which consist of  "ou$le hete#oc%clic nit#ogen #ing. & c%tosine $& pu#ines c& u#cil "& p%#i!i"ines

1;9. A pol%pepti"e consists of 39 !ino ci" #esi"ues. The !ini!u! nu!$e# of $se pi#s in  )NA st#n" nee"e" to co"e fo# this p#ticul# pol%pepti"e woul" $e+ & 39

$& ,3 c& 16 "& not enough info#!tion gien

1;:. The o#"e#ing of nucleoti"es in nucleic ci"s is n e!ple of its+ & p#i!#% st#uctu#e $& secon"#% st#uctu#e c& te#ti#% st#uctu#e "& =ute#n#% st#uctu#e

11;. )NA/s "ou$le heli confo#!tion is n e!ple of the nucleic ci"/s+ & p#i!#% st#uctu#e $& secon"#% st#uctu#e c& te#ti#% st#uctu#e "& =ute#n#% st#uctu#e

111. The inte#!olecul# fo#ce #esponsi$le fo# ntie )NA/s "ou$le helicl shpe is+ & slt $#i"ges $& "isulfi"e lin2ges c& *on"on fo#ces "& h%"#ogen $on"ing

11,. The #epliction p#ocess of )NA is cont#olle" to ssu#e ect copies of )NA "u#ing !itosis th#ough .

& i"enticl $se pi#ing $& co!ple!ent#% $se pi#ing c& opposite $se pi#ing "& "iffe#entil $se pi#ing

110. Which of the following nit#ogen $ses "o not p#ticipte "i#ectl% in t#nsc#iption. & A"enine $& C%tosine c& th%!ine "& u#cil

113. )NA is foun" in  cell/s+ & c%topls! $& en"opls!ic #eticulu! c& nucleus "& histones

114. is ssocite" with ( whe#es is ssocite" with . & !RNA( t#nsltion( tRNA( t#nsc#iption $& !RNA( t#nsc#iption( tRNA( t#nsltion c& #RNA( t#nsltion( tRNA( t#nsc#iption "& #RNA( t#nsc#iption( hnRNA( t#nsltion

116. Which of the following is not inole" t n% step "u#ing p#otein s%nthesis. & )NA $& !RNA c& #RNA "& hnRNA

117. )u#ing t#nsltion( ttches itself to the locte" in the cell/s en"opls!ic #eticulu!. & hnRNA( #i$oso!es $& tRNA( #i$oso!es c& #RNA( #i$oso!es "& !RNA( #i$oso!es

119. The is the lnguge of he#e"it#% info#!tion. & geno!e $& gene#ic co"e c& genetic co"e "& genes

11:. The th#ee nucleoti"e $se se=uence of is #efe##e" to s the . & !RNA( ntico"on $& tRNA( ntico"on c& tRNA( co"on "& #RNA( co"on

1,;. 'ien the following po#tion of  )NA st#n"+ CTA'''CAATT' >ts co!ple!ent#% "ughte# st#n" woul" he the following $se pi# se=uence+ & ' A T C C C T T A A C $& '  T C C C T T   C c& ' A  C C C   A A C "& C   T T ' C C T A '

1,1. 'ien the following po#tion of  )NA st#n"+ CTA'''CAATT' The !RNA st#n" woul" he the following $se pi# se=uence+ & ' A T C C C T T A A C $& '  T C C C T T   C c& ' A  C C C   A A C "& C   T T ' C C T A '

1,,. Which of the following stte!ents is not t#ue. & Ee#% !ino ci" #esi"ue hs its own tRNA. $& >n  co"on( the fi#st two $se pi#s #e!in constnt fo#  gien !ino ci" #esi"ue it is the thi#" $se pi# which !% "iffe#. c& All co"ons co"e fo# n !ino ci". "& Co"ons #e unie#sl( the% "o not chnge $etween species.