I GATE- 1 998 I o l I J I LIF SCIENCES J c=:=========== I CHEMI.TRY COMPULSORY) USE F UL D ATA G as c<m s tan t , R = S , J ~ Jk - 1 m o l · ' = \) ll N 2 1 I aLm ' 1 ~ 1 mol 1 Farada v constam = 9650u cou l ombs Atomic Numbers Ti = 22 . V c 23 . C r = 24 . Mn = 25 . Fe = 1 6. C o = Cu = 19 f o t • ea c h qu e s tion givl'n b e l ow, four altemati v e s ar (' p t ·ov ided or w h i ch onl y one i s con-ect. ' •ite the co i T t C I an sw e a iu the · answe r book by w ri t in g n, b , c 01· d a l o n g with the co rr ('S il Ondi n g s ub-qu es ti o n n u b ~ r I. 20x I = 20 ) If the hnlJ-L ife o f a chemical r eaction is ill\ ecse l y proponional t o d1 e ini t ial concentrati o n. th e order of the reac t ions is a, 0 b . I c . 2 d . 3 T h e degenerate num b e r of at o mtc orb ital correspondtng t o tho p rinci r Ja l quantum number 4 fo r h ydroge n atom I S a 16 b 9 c. 4 cl 7 The rirs1 L:m · of t hermodynamic s IS ra h d for a . re1 ers i ble pr o ce ss o n ~ b . orre1 e r s 1 ble pr oces s o n l y c . adiabatic process on l y d fo r all t he processes T h e m a ~ i r n u m depres s i on o b s ~ n t d in th e frelll' . ill ; p 0 1 nt o r water for f o ur s o luti o n containin g equimo lnr amoun t o r urea , KCI , 5 . (j 7 8 1) , 10 . CuSO,. and Ba(NO , .. respecuve l y I S for Lhe solutiO n hal · mg a CuSO, b llrea c . Ba(N0 . 1 I : d KC I The paramagneuc ch a racter o bsen ed i n case o r o ,. 0 · a nd 0;, is i n the order as a . 0 0 1 = 0 b 0 > 0 2 > 0 2 c . o , = o " · > o , d 0 > 0 0 Nom b er o f a t o m s present in t h e body centere<,l cubic cel l is a. I b 2 c . 3 d 4 W l ucb o f t he fo ll owing compou nd s bas a h 1 g h dtpoJe mo ment' a. C 0 2 b . CC I , c . H 1 S d . BF Fo r the eq uilibnum reacuon 2 Hl(g) 0 H 1 (g) .._ h(g) a. K K. b . l K c . K 1 , > K d . K,. < K. · W h ic h o ne o f the f o ll o 11in g has T S hap e s tr u cmre' l a . I C l , b N O ; c . CJF, d . SF , ldem1 l y t h e tetra gonal l y elonga t ed comple x from the fo ll owon g : a [Cr (H , OJ. I . b [Cu (l · I?Ol , , f c . [Mn (H 1 0) r . f d I Fe CN)6) 4
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book by writing :o , b, c or d along with thet.ortespondint:su b questiurt number.
(2ih: 1 = 20)
J Whiclt one of tlw foUowing docs not
correeUy t'<'}JU1Sentthaproperly of
a. An ordered structure in tlte Uqllid state
b. A higlt didectric COtb'iant
c Does not interact electrostatically wtth
pharged so lutes
d, Ability to foon l1ydro.gru1 bonds witil
solutes
2. The pK values of carboxyl. imidazole and
amino groups of blslidine a r ~ 1.8, 6.0 and5t2, respecnvely, Its isoeiectnc point willbe
a,
b. 5.5
c. 6 5
(i. 1 6
3. The i n t e r l J e U ~ : ~ amino amd resulnes o
~ p e n n w h a l e myogJobin are
a Nonpolar; ~ t a b i f u l l l l by ltydropltobi<-'
iJtleruction•b. Nonpolar. stabilized by h y d r o h . i ~ c
~ c t i o n sc. Charged ancl po lar, stfilnlimd by
hydrntiond. Cllll ged and pol•r. stabllized ll )
dispersive lorces
4. The oxygen dissociabO t cll Ves of follTsuh:;t ance n b C cutJ d are shown in
figure I
Which one of lhese s t a n ~ e s will be lhe.mosl effective respiratory' carrier of
oxygen?
n
b b
c t ..
·1of 13cL J
5. A11unchargednlolecule suclt us glucose .islriDlsport.ed lly passive dlff1J$ion lh:mtoutside to-inside of a ba¢ terialnMnbratteunder lite following sel of w d l l i . na. Llutside concenttatitln ~ I M ~ i d e.
c. cthyleno •nd i b b c r ~ u L •d. abscissicocld and polsetbykn< glycol
10. ·n,c fuoction of Leg ltacmoglobiJJ io root
nodules in rhizobaum legumo$)1mblosos J5
n. to tran..port oxygen to he nodulerQrmnt ion
b. tQ trarup<>rl nolrQgcn to Uoe nodule
bacterium.
c. 1pn ll l:t lhc m•lule IAclcrium,
d lo protect the nitrogenase in the Mduleh a ~ : t e r i m
l'hc net ~ n t h e $ l of l . f u ~ o s o from lipid$can lllkc place during the gonnionliuu uroil c d • in a w o ~ kno u
a. l: ll.'<osc ruo nophosphoto shunt
ll. Mnlllle artate laultloi . glyoxylotc cydo
d. Ca lviJJ cycle
12 In m•n> p o ~ ; . . , . ul' plant8 due tu a u ~ ~ ~ : ~ bl
m _ i c o o r g . - t n i ~ r r J or oth r s j ~ l u l u rthe l h e s i ~ of the following i induced
13.
a. Phycobilin•
h. t n a l cc. Ribozymo
d. phy tQehrolllc
Cbloropla•lg e n o m ~ of
higjocr piMI i>n. doublcstrnnd.edRNA
b. doubk <trundctl dr1:ular tJNA
c. sin11-le stranded RNA
d singk t r n n d c d IJNA
n,. e > ( c h ~ n g e of geneuc mfonnationbel\\ een homologous chromatids atmeiosn bas buco shown to invo lve 11 cross .
bridged u r e called Holiday slructure.I he cytological veo11ion nf thos stntcmre is
o, l\ '11aJl'l IS
15.
b. o ~ < m a w\ :. Centromere
. S j l i n d l ~ r-.I)Crs
A plnnt15 snod to bo homozygous, when
.., it th o m e allele lor • ~ e n e vneach chrl.'mosom"of n pnir -
b. the plant i3 derincl from two simil:or
looking parents
c It Q( •j)(lmiutic <>rigin
d. It is produced oy self-fert iliuJoon.
8 ut 1
16. Phloem is concerned with tlte transport of
organic •uhsttm= from ·•our<:es · hi's ink> in pl•nts. Turglll pressure fn
fun<:;liuual phl<lem will be
a. lo" alth<>>outco aod ltlgh al the >ink
h. low n t t h ~ s nk llDd high 01 the source
c. lo al boUt, tlte >ink and >Ourcc. and
higb _u betw nd. 11U of the ubO\'o.
17. The lllllnhcr uf r•rim:ny W l l UIIICI'l> in
fiood wet• ho.• decre:t.•cd. \\1ticb ntguui•min the fo1rnl weh would mo•t llkcil thef ' i r ~ \0 SllftWn 111Cfl'JSC in I I U I I 1 i ~a s.econdi3ry cntlotumers
h m d ~ c icl
• •c.. unax o r g a n t s m ~d cnrnivnres.
'I he form in which tha bolk pfc•rbnhydmte u; r a ~ s p o r t c d m vnsculnrplan\ ; ;.
a. Jfuclo <l
b. rnOinClsc
c. ~ u c r o s ed. " ' '"
1 J. Which one of' the followin as responsiblefoo·defestatiou ofground nul a·op·l
Pu..:cini:t tttu\ hiili,.
h Sclerosporn gromini
c. Phytophihnm infcstans
1 Neurosporn crtiJis:i
20. Which on< of the li>llowlng forest• is mored i v e r s e ·u . ~ , m f . : : r o u . . ~ cvcrgr=:n
b. deciduou• e\'e1].rcen
c, 1mpic:o min o r e ~d. •-ubtropical rn'" forest
21 Ma tch the plant p e c i e < ~ (column T) withthe p m p r i a t c f;imilies (eolumn II).
A D i u W o r o p b e u y h l i m . : : ~ l ) ' l l - . : a (DC:.\1U).
an heroicadu interferes ith phclto
phosphoryllltion and o.xygen evolution.ltclo.:s n11t l o c ~ Hill reaction.
Propose a site for the inhibaory actionofDCMLI. (31
13. l f you were going tQ extract()hloropbyll a nnd o r ~ p h h fromcrushed spinach e ~ l l ' ~ . would youJl"eler a ~ t o n c1r ' ater a sulvc:nl
p ~ u n yuau an>Wt:r hriony. (2)
.ww the roii0 \1 ing .
A. Both , cellulose and <J.·anaylil le, consi,<t
ol J _.-I) - liltked D-glucosl3 units endCnn bd Gl<lcnsiv.:ly hydrolyz<tl.OC Ipite similorly. a penmn on n
diet con6it1 ng predominontly ol o.am)•ICJOlc (slan h) \\ ill ga an w c a g h ~whc'I"CIIS 0 JlCI'I Oll on 0 clicl or cdlulcJset,CO I"IOII) will Ktrt \'0 . \vlay? (2)
a Why do most fibrouslow nutrilionnl vnlue'l
An •'er the t'o llowin,g :
protein.(3)
A. N lllllo the onr.bondioxide Cix;ation cyol u
that characteri'l:es • desert plnnt
Mon1i11n brielly the plays .nlogictal~ l i g m G c ~ J H o h i ~ 8 ,Vslmu. (3)
B. \Vhnl arc Jbe Uarcc life fomas of planl>thai arc ;,doplcd lo dcsorl• 'I £:.plainhow th,.,;e avoad drough t. (2)
the following :
A Name • berbic.1d" that c;<hibil$ ou:un
like activity and a compouud thatbibits cytokinin ·llko aotivlty.
B. N urm:rmlil unnlllll pl:ulL>•nd indi\'idlllllpart.> of lx>U . aunwa llod pc11mninl.
pl:mt• exbihit g m o i d l JYIWth - . i n c : t l ~ >nd i n d i c a ~ < : the> three ~ c s in
the w·uwth cun e.
Answer the followin(l :
A. Place lhe f o l l o \ \ ~ n g OODIJ011eul5.
' uctants and p 1 d u ~ b of Ulo
nit:mgannse m p l o ~ r ~ m c i o n iu Utcir
con ct sequence during the eleclfonlrnnsl- . of rtitrogen lixat.ion :
., ' ]
ll. Olcidizcd ferredoxin
b. Reduel:l.sc componenl
c Nitrc,gcnase compouc::n l
d. . \mmonl:a
c. Nitrogen[ Reduced Ji:rrodox.in
g. lllectroo sow..:e 13)
H. I'MV ~ 1 1 1 double s trruaded RNA .l d ~ n i n e content s ~ s • • o. what i5 Ute
mosl proboble composition of thegenome '' (2)
IC : IIICIIOaiOLOGY
Fo r ~ a d l sub-qut>stion given b < ~ o w , four
all£•rnulins llJ'e provi l<d of 1\Uicll only one is''urrt"Ct. \Vritt t he.' unswl'r in 1hc ~ " \ n • rhnul' hy wri1ing u h, nr t ulnng ''i th th {•·orrPSpnndIn g I' ll b-<JU csrion nuna twr.
(20 :< I=
I. Under the live ldngclom $)nem of
d6ssilkation of JivinQ world. cubocteri•
ate 1•l•eed unccr t h ~ kingdona :
a. Pbnl.lo:<
h. PI'Oli•Ut
t.:. Puugi
d. Monc'l'a2. Which of the followillg <et organilim
belong 10 llr'chncbacterinl ?
3.
·'·
a. Myw plas ma. Saroton. Pneumocoecus
>. 1\ lcth3n<,;urcina , l ; o l o c n c ~thcnnoplla• m•
c. Nilrosococcus. i t r o r u o l S ~ Et'' in.ind. q J l O C < / C ~ a l s .
lln loeoccw;
The Scienlist ho pr oved b) cxpcrim-:nb
tha t the theory of 'pontnncous gancrotion
iswmns , isn. Jo•eph l.i•ler
b R ~ h e r i Koch
c. Louis P ~ , s t e ud Ed\\nrd Jenner
SynUJallc medium conbirung pho<phatcs.cnlc-mm . nnd il'on salt \. upon outnclnvinglead s tD precipatate J'onnalion. This is
o. \Vnvc.lengtb of he light eb. Rd'ructivc index of the medium
het\\·een the ~ p e c i m e n and olbjectlvelen:;
c. H o l f - ~ n g l e of Ihe objecbve lens
<1. 1\llthe tbree ,tbcwe
rho to llowmg is e ~ ' l rimgal •pore ·
U. t\,<;COS ilOfO
b. Chbmydospore
c. Bnardiosporc
d Zygospo"'
Dipic.olinic add s r c s ~ in
•,. Eb. Exosporo
,L Conidia
Tn agrrcu llul'ltl fie ld•. the nitrogt:U lixcd
n • b i n t Q'fpnilllll. •• comp•red to fro..-..
living nitrogen f LXts. Is
3 , Equal in amount
h. 2 fohi hi 1-b.:r
c. 100 tv lOOO·fi1 ld lugher
d. llHold lower
Tiu: e n ~ t j ) ' <outre fl r the genu.
NitrcMomonru. is :
::l Ammon.i.11
h. Nitr•ito
c. Nitrog"n
d. f\f'tiJ'lllC
Zynwm oniiS mobilis. ferments glucoseEmoor·tloouderoll' 1 • a l b w ~ to fUOtlu.:e
ethonul. TI1 " numh.:r ol' moles l>f ATP
formed pt'l' molecJ
'gJuct)sef o r m ~ n t
i•• · 1 mole
h. 2 mnleo
c. 36 moles
"- 38 m obipbl.heria toxin mlubit.. protem synlhcsi•lhr()ugh
R e o . c nr pcptidyl ~ li'nm ·P'
1>. Bind ing tn l'•c1or EF · l
c. Inhibiting p.:ptidc bond fomtation
12
13.
14.
15.
IG.
17.
18.
ltJ nl t•d. ~ U f i n peptide bond r.mnntion
Hydro.'<ylation of >teroid ring (at pos[Lion
U) ond clehydr<>genation (ot poJitions I ond2 he effe.:ted hy two organisms.
They an: . : s ~ c t i \ c : l y .a. COJ}'nebacleti um Sl.r"f)tomy
sp.
b. Rhizopu. 'I '· Cot)•ncbacknum •P·c. >Up.,rgillus ll'· Rhizopus sp.
d. P•c ud<JLUtJnO> sp. A.<JlC 'giUu.>>p.
Titc: growth of Leueonosloe doxb'ilnieumand L. Ciu·o••orwn imparts he
charadenstic aroma to the fermented m tlk.lt is because of tbetr ability lo produce
a. -""elY' C oA
h Aeloo»elic actd
c. Di•cetyl
d. Ac"toionhe t\vo d i f i e ~ d g n r s prcscnl m mun: n
ofGram pos ·l ive bacterin ace
a, Gluco•amine and N·t\cetyl•tglucosaminc
b N·Ac-ety glucosamiM and N·acctylmurnmic ucld
"· N· Ao<:tylmu.rumie ~ c i ~ and N·at.:.:tylgluwronic ao[d
d. s lucosanun.: mnd M a u ~ m s ; r u u o . :Tin: geuuahc of U t . o c i u j ~ vi < is
a. Slng lc •l.raud.:d DNAb. Single s ltllnded ~ " 1 A
c D a l r ~ m d UN A
d. Doublestronded RNA
lmmuni•atiun wi th triple antigen olTe,..prult:ction n m ~ l t h e foiiCiwing di•ca;cs
a. D1phll1enn. J>mtussis. l l t n u sh Pt:nmsts, T c t a C'holera
c. l'.vph01d. Pa mtyphoid A. parotvpltoid
B
d. 'l'ubeN Uosh, Iypltoitl, ~ ; ~ n uTJ1e number ofdistinct p<:ptid"" une wouldget 1111 ruiUlhtg sccr<:IOf\' lgA un ~ D SPAGl under r OduClllg cct11ditions. i•
•. t
b. 2
d.
Altapltilotu.xius ""' produced l.uc to liec l ~ : a v o 1 g u of