BIO Solutions Final Exam 2006

8/10/2019 BIO Solutions Final Exam 2006

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SENIOR SECONDARY ASSESSMENT BOARD OF SOUTH AUSTRALIA

BIOLOGY EXAMINATION 2006

SOLUTIONS DRAFT 1

QUESTION BOOKLET 1

SECTION A

1 L 8 K 15 J 22 J

2 J 9 M 16 J 23 J

3 M 10 L 17 K 2 L

M 11 M 18 M 25 L

5 M 12 J 19 K

6 M 13 K 20 K 7 K 1 L 21 L

E!"#$%#%&'#()*$(# +,#("-*$(. /'( *4"#% -$(" "# 4'-"#'-*$

communication

More than half a page, str!tre" #n the for$ of senten!es an" paragraphs% &' $ar()

Uses !orre!t gra$$ar an" spell#ng% Spell#ng e$phas#s pla!e" ter$s #n the !rr#!l$ state$ent% &' $ar()

Clearl* an" !on!#sel* e+pla#ns !on!epts s#ng releant -#olog#!al langage% &' $ar()

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SECTION B

./ &a) translat#on

0' spell#ng /2

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&-) ) CTA

/2

&-) #) E!)-$ /22.

a!t#e s#te #s !o$ple$entar* shape to spe!#f#! a$#no a!#"s &.)

"#fferent a$#no a!#"s1tRNA hae "#fferent shapes &.)/

&!) s*nthes#s rea!t#ons &')

re2#re energ* &')

/2

.3% &a) E!)-$ /22.

Energ* #s lost at ea!h step &troph#! leel) #n a foo" !ha#n &.)

More steps1troph#! leels #n B &.)

/

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&-) re!*!le resor!es1ntr#ents &.)

/2



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.4 &a) In!rease !rop *#el"s on sal#ne so#ls

/2

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&-) &plas$#" an" DNA !onta#n#ng salt res#stant !t 5#th the sa$e restr#!t#on en6*$e)

then 7o#ne" together

&.)

&re!o$-#nant plas$#" pt #nto -a!ter#$) then -a!ter#$ #nfe!ts !ereal plant

transferr#ng genes &.)

8Ma+#$$ of &9 $ar(s) #f one of: f#rst an" last po#nt $#sse";

/

&!) The DNA n5#n"s to e+pose -ase se2en!es &.)

free DNA n!leot#"es 7o#n -* !o$ple$entar* -ase pa#r#ng &.) /

.< &a) -et5een = a$ an" . p$ !on!entrat#on of CO. "e!reases &.)

-et5een . p$ an" = a$ !on!entrat#on of CO. #n!reases &.)/

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&-) CO. #s s-strate for photos*nthes#s &.)

#n!reas#ng l#ght #ntens#t* #n!reases rate of photos*nthes#s &.)

or

photos*nthes#s greater than resp#rat#on

/

&!) atotrophs pro"!e organ#! !o$pon"s1o+*gen &.)

heterotrophs nee" to !ons$e organ#! !o$pon"s &.)

or

heterotrophs nee" o+*gen for aero-#! resp#rat#on

/



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9> &a) Dete!t the presen!e of s*ste$at#! errors

/2

/8

&-) ) to #n!rease sa$ple s#6e &' onl*) an" $#n#$#se the effe!t of ran"o$ errors

or

#n!rease rel#a-#l#t* of the reslts/2

&-) #) to ensre that the effe!t 5as "e to the "rg

or

as a !ontrol

&!o$par#son onl* &' $ar() /2

&!) A n$-er of reasona-le ans5ers are poss#-le?

More effe!t#e se of health $one* &rather than treat$ent)

@reater pro"!t##t* #n 5or(pla!e

@reater pta(e -* $e$-ers of so!#et*

Less a!!#"ents

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9'&a) Cell $e$-rane re!eptors -on" to spe!#f#! hor$ones &.)

Not all !ells hae a !ell $e$-rane re!eptor for for EO &.)

/

/1

&-) ) Rate of !he$#!al rea!t#on "epen"ent on te$peratre

or

H#gh te$peratre !an "enatre prote#ns &en6*$es) &EO) /2

&-) #) A$#no a!#"s are s-strates of prote#ns &EO)

/2

&!) re" -loo" !ells transport o+*genor

More re" -loo" !ells &.)

More aero-#! resp#rat#on o!!rs releas#ng $ore energ* for athlete &.)

/

&") Ma* not fn!t#on properl*

or

Un(no5n s#"e effe!ts/2



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SECTION B. S*'" A$(#'(

BOOKLET 2 /Q,#("-*$( 32 "* 37

9. Trans$#ss#on A #s -* neres, B #s -* hor$ones &.)

Nere trans$#ss#on faster than hor$ones &. / /

99 &a) So that ea!h "aghter !ell gets an #"ent#!al !op* &!o$plete set) of the DNA%/2

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&-) attern at '> $#ntes &.)$st hae for repl#!te" an" t5o pa#rs of !hro$oso$es on e2ator#al plate

attern at .> $#ntes

$st hae for s#ngle &t5o pa#rs) of !hro$oso$es near poles &.)

/

&!) Can!er #s n!ontrolle" !ell "##s#on &.)

reent#ng separat#on of s#ster !hro$at#"s stops !ell "##s#on &. /



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9= &a) That !he$#!al #s a $tagen

or

Che$#!al affe!ts $tat#on rate #n Sal$onella

or

Che$#!al allo5s the !ell to pro"!e h#st#"#ne

/2

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&-) N$-er of !olon#es of Sal$onella

orpro"!t#on of h#st#"#ne

/2

&!) Cltre $e"#$ !onta#ne" h#st#"#ne

or

rong -a!ter#$ se" #n e+per#$ent/2

&") Man* $ore !olon#es are a-le to gro5 5hen !he$#!al #s a""e" to the !ltre

$e"#$% /2

&e) ) h#gh te$peratres &')

/2

#) ra"#at#on &')

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9 &a) @raph?

a!!rate plot &9)

la-els on -oth a+es &')

appropr#ate !ho#!e of s!ale &')

l#nes of -est f#t &')

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&-) grop of organ#s$s l##ng together #n a part#!lar ppla!e at a part#!lar t#$e

orIntera!t#ng poplat#on

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&!) lant . nee"s spe!#f#! en#ron$ental !on"#t#ons to sr#e &.)

lant ' alters pre0e+#st#ng !on"#t#ons to $a(e the$ s#ta-le for plant . &. /

&") An#$al A eats plant . &.)

The graph pattern for An#$al A has the sa$e shape

-t lags -eh#n" that of plant . &.)/

9/ &a) Me#os#s

n!orre!t spell#ng ') /2

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&-) restores "eplo#" n$-er

or

#n!rease genet#! ar#at#on #n poplt#on/2

&!) M#tos#s

n!orre!t spell#ng%0') /2

&") genet#! ar#at#on #s greater -et5een less !losel* relate" #n"##"als &.)

hen!e $ore ar#at#on #n #s poss#-le #n s-se2ent polat#ons an" $ore l#(el* to

pro"!e faora-le a"aptat#ons &.)

/

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93&a) A!t#e transport re2#res energ* an" gl!ose #s a sor!e of energ* &.)

@l!ose#s se" #n !elllar resp#rat#on an" the #nh#-#tors of !elllar resp#ar#on hae

re"!e" the rate of gl!ose transport &.)/

/10&-) es#!le $#grates to the !elllar $e$-rane &.)

the l#p#" $ole!les of the t5o -#0la*ers &es#!le an" !ell $e$-rane) fse an"

reaarange the$seles so that the es#!le #s on the ots#"e &.)

/

&!) #ll# are the s#te of a$#no a!#" a-sorpt#on /2



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S#4"-*$ C. E!"#$%#%&R#()*$(# Q,#("-*$( /30 '(

38. The cell cycle is controlled by internal and external factors. Some of these factors are gene products,

which require energy in order to be synthesised.

Describe:

The role of at least one internal and at least one external factor in controlling the cell cycle /6 '(

Internal fa!tor role of &9 $ar(s)

MF !ontrols $#tos#s

Ma"e of !*!l#n an" (#nase or 5or" e2at#on

C*!l#n #s reglator* prote#n 5h#!h a!t#ates the en6*$e

C*!l#n leels r#se an" fall "r#ng !ell !*!le

#nase #s an en6*$e

#nase leels re$a#ns the sa$e #n the !ell !*!le

R#se #n MF leels &"e to r#se #n !*!l#n) #n#t#ate $#tos#s throgh to en" of $etaphase

S""en "rop #n MF #n#t#ates anaphase

R#se an" fall nee"e" so onl* !ell "oes not "##"e !ont#nosl*1$#tos#s f#n#shes

E+ternal fa!tor role of &9 $ar(s)

@ro5th fa!tors

Ma* -e hor$ones

Are prote#ns

Ma"e -* other !ells

B#n" to re!eptor $ole!les #n the !ell $e$-rane of the target !ell

B#n"#ng #n"!es !hanges #n !*toplas$#! prote#ns !alle" rela* prote#ns

Rela* prote#ns rela* $essage to !ell !ontrol $e!han#s$s

Cells $oe -e*on" the restr#!t#on !he!(po#nt1!he!(po#nt '

Cell !o$$#ts to DNA repl#!at#on

cellular processes that use glucose to pro!ide the "T# that is needed to synthesis gene products.

/6 '(

The 2est#on states G!elllar pro!esses that se gl!ose hen!e the ans5er #s restr#!te" to the resp#rat#on

!o$ponents onl*%

Aero-#! resp#rat#on &9 $ar(s)

Anaero-#! resp#rat#on &9 $ar(s)

D#s!ss#on of the follo5#ng for ea!h rea!t#on

rea!tants

pro"!ts -alan!e" e2at#on or 5or" e2at#on

se of o+*gen

!o$pleteness of gl!ose -rea("o5n

s#te

n$-er of AT $ole!les for$e"



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3$. Describe:

one method that could be used by scientists to determine whether the leafy sea dragon is more

closely related to the sea horse or to the pipefish / '(

Metho" ' DNA se2en!#ng

Isolate !orrespon"#ng se!t#ons of DNA fro$ -oth spe!#es

Deter$#ne -ase se2en!e of ea!h seg$ent

Co$pare se2en!es for s#$#lar#t* of -ase se2en!e More s#$#lar $ore !losel* relate"

Metho" . 0 DNA f#ngerpr#nt#ng

Isolate frag$ents of DNA fro$ -oth spe!#es

CR to a$pl#f* se!t#ons

Co$pare lengths of the spe!#f#e" STRs17n( repeats

Fre2en!* of the repeate" -ase se2en!es !o$pare"

Close $at!h of lengths #n"#!ates !lose relat#onsh#p

Metho" 9 DNA0DNA h*-r#"#sat#on

DNA fro$ one spe!#es heate" to separate !o$ple$entar* stran"s

S#ngle stran" fro$ other spe!#es $#+e" 5#th separate" stran"

M#+tre #s !oole"

Closel* $at!he" stran"s -#n" $ore t#ghtl* than those not 5ell $at!he"

Ne5l* for$e" "o-le hel#+ #s reheate"

At lo5er te$peratres, poorl* $at!he" stran"s separate $ore eas#l*

DNA fro$ !losel* $at!he" stran"s shol" $at!h 5ell

Metho" = rote#n !o$par#son

Co$$on $ole!le sele!te", eg c"tochrome c

A$#no a!#" se2en!es fro$ -oth spe!#es !o$pare"

A$#no a!#" se2en!e #s "e to or"er of -ases #n the $RNA1DNA fro$ ea!h spe!#es

@oo" "egree of $at!h #n"#!ates !lose relat#onsh#p

the importance to the %elp forest community of protecting the leafy sea dragon / '(

Ma#nta#ns sta-#l#t* of all relat#onsh#ps 5#th#n the (elp forest J reason

Ma#nta#ns foo" sor!es for other organ#s$s J e+planat#on

Ma#nta#ns foo" !ha#n of the sea "ragon1fee"#ng leels presere" J e+a$pleMa#nta#ns -#o"#ers#t* J reason &aesthet#!, $oral, f#nan!#al, respons#-#l#t* to planet)

two ad!antages of protecting the %elp forests rather than protecting only the leafy sea dragon

/ '(.

Ma#nta#ns ha-#tats for all spe!#es J e+a$ple &eg nest#ng s#tes)

Ma#nta#ns resor!es for all J e+a$ple &eg foo")

Unaltere" ha-#tat $eans less sele!t#on pressres on spe!#es1!o$$n#t#es !ope -etter J reason

Ma#nta#n#ng the forest $a#nta#ns the #nter!onne!te"ness of spe!#es

Ma#nta#ns foo" sor!es for all spe!#es J e+a$ple

reseres the 5hole en#ron$ent for aesthet#!, e!ono$#! reasons

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BIO Solutions Final Exam 2006

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