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Centre Number

Student Number

SCEGGS Darlinghurst

2004Higher School Certificate

Trial Examination

BiologyThis is a TRIAL PAPER only and does not necessarily reflect the content or

format of the Higher School Certificate Examination for this su!ect"

General Instructions

Reading time 5 minutes

Working time 3 hours

Write using black or blue pen

Draw diagrams using pencil

Board-approed calculators ma! beused

Write !our Centre Number andStudent number at the top o" the

pages indicated

Total marks 100

#ages $ - %&

72 marks

'his section has two parts( #art ) and #art B

#art ) %5 marks

)ttempt *uestions % %5

)llow about 3+ minutes "or this section

#art B 5, marks

)ttempt *uestions %& $,

)llow about % hour and + minutes "or this part

#ages %. - %/

28 marks

)ttempt *uestions $.

0igher School Certi"icate 'rial 12amination $++3-

Biolog!

Section I

Section II

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)llow about 5+ minutes "or this

section

0igher School Certi"icate 'rial 12amination $++3-

Biolog!

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BLANK PAGE

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Section ITotal marks 72

Part A1 marksAttem!t "uestions 1#1

Allo$ a%out &0 minutes 'or t(is !art

se the 4ultiple Choice )nswer Sheet proided)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))

1* ) student in a science laborator! bubbles carbon dio2ide into a beaker containing waterWhich o" the "ollowing describes how this would a""ect p06

7)8 'here would be no a""ect on p0

7B8 9t would cause the p0 to reach :ero

7C8 9t would raise p0

7D8 9t would lower p0

2* 4ammals e2crete mainl! urea while insects and birds e2crete mainl! uric acidWhat adantage do birds and insects gain b! e2creting uric acid6

7)8 ;ess energ! is lost producing uric acid

7B8 ;ess water is lost e2creting uric acid

7C8 ric acid is more soluble in water

7D8 ric acid also rids the bod! o" salts

&* Which o" the "ollowing e2amples describe a correct "eedback process in an endotherm6

7)8 9ncrease temperature thermoreceptor h!pothalamus asodilation heat loss

7B8 Decrease o" temperature h!pothalamusasodilationheat gainthermoreceptor

7C8 9ncrease temperature h!pothalamusthermoreceptor asodilation h!pothalamus heat loss

7D8 9ncrease temperature thermoreceptor asodilation h!pothalamus heat loss

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+* What determines i" an allele is dominant or recessie6

7)8 0ow common it is in a population

7B8 Which chromosome it is carried on

7C8 Whether it is inherited "rom the mother or "ather

7D8 Whether it determines the phenot!pe( when both alleles are present

* DN) strand - CC''?))?')

7B8 Suspect $ > DN) strand - ??))CC)7C8 Suspect 3 > DN) strand - ''))?''?)'

7D8 Suspect > DN) strand - ??))C''C)'

.* 'he diagram below shows the "orelimbs o" seeral di""erent ertebrates

9denti"! the "orm o" eidence "or eolution shown in the aboe diagram

7)8 1idence "rom palaeontolog!

7B8 1idence "rom transitional "orms in limbs o" ertebrates

7C8 1idence "rom comparatie embr!olog!

7D8 1idence "rom homologous structures

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7* Which o" the "ollowing statements most accuratel! describes Beadle and 'atum@s Aonegene one en:!me h!pothesis

7)8 'here is onl! one t!pe o" gene in cells that codes "or en:!mes

7B8 'here e2ists a one-to-one relationship between gene and the en:!me produced b! that

gene7C8 1n:!mes onl! act when stimulated b! their corresponding gene

7D8 9" a gene is changed b! radiation( the en:!me produced b! that gene can still be produced

8 9n the process below( what t!pe o" cell is ?6

7)8 ?amete

7B8 !gote

7C8 Diploid

7D8 0omologous

/* ) researcher inestigating ear length in natie animals used the "ollowing s!mbols>Erepresents the allele "or dominant short ear erepresents the allele "or recessie long earWhich o" the "ollowing represent animals with di""erent genot!pes but the same phenot!pe6

7)8 11 and ee

7B8 11 and 1e

7C8 1e and ee

7D8 1e and 1e

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12* 'he diagram shows a culture o"Escherichia coliisolated "rom water in a creek E. coliis abacterium commonl! "ound in the human gut

What is the best wa! to ensure that the water in the creek remains clean enough to drink6

7)8

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1* What is the di""erence betweena ariable and a control in a Biolog! e2periment6

7)8 ) ariable can change in an e2periment and a control is used to ensure that it doesn@tchange too much

7B8 ) ariable is a "actor that could change the results o" an inestigation whereas a control isa standard against which e2perimental results can be compared

7C8 ) ariable is alwa!s changing whereas a control alwa!s sta!s the same

7D8 ) ariable must alwa!s be kept constant whereas a control will change depending on thee2periment

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200+ TIAL IGE S,L ,ETI3I,ATE E4A5INATIN

BiologyCentre Number

Section I 6continue

Part B 7 marks Student Number

Attem!t "uestion 1.27Allo$ a%out 1 (our an + minutes 'or t(is !art

)nswer the =uestions in the spaces proided

5arks"uestion 1. 7, marks8

7a8 Compare the structure o" arteries( eins and capillaries in relation to their "unction.

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7b8 Describe a technolog! that could be used to measure o2!gen saturation FR carbondio2ide concentration "or a N)41D condition

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5arks

"uestion 1/ 73 marks8

12plain how radiation ma! lead to the creation o" new alleles&

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"uestion 20 7, marks8

7a8 Futline the processes used to produce a N)41D transgenic species

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"uestion 20 continues on !a9e 11

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"uestion 21 7& marks8 5arks

Sutton( Boeri and 4organ inestigated the roles o" chromosome structure in inheritance .B! re"erring to the research carried out b! each o" the aboe scientists( Gusti"! theirimportance in proiding eidence o" the role o" chromosomes in inheritance










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"uestion 22 75 marks8 5arks

'he diagram below is a pedigree "or albinism in humans )lbinism can be an! one o" a number o"genetic conditions that cause lack o" pigment in the e!es( skin and hair o" su""erers

1 2

I

1 2 & + . 7 8 / 10 11

II

III 1 2 & + . 7 8 / 10 11 12

7a8 9s the allele responsible "or albinism dominant or recessie6 Husti"! !our answer 2





7b8 9" indiiduals %+ and %% in ?eneration 99 had a daughter( what chance would there be o" & her being an albino6 Show working

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"uestion 2& 73 marks8 5arks

Futline how the "ailure o" genes to "unction correctl! ma! result in disease &



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"uestion 2+ 75 marks8

Discuss the role o" =uarantine in )ustralia 9nclude releant e2amples in !our answer






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"uestion 2 73 marks8 5arks

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"uestion 27 7. marks8 5arks

4edical doctors need to be kept up to date with current knowledge and understanding 8about in"ectious diseases Jnowledge has enabled doctors to deal with disease usingdi""erent methods

sing in"ormation that !ou hae gathered( processed and anal!sed( present a detailed

description o" FN1 named in"ectious disease including how methods o" dealing withthis disease ma! hae changed





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200+ TIAL IGE S,L ,ETI3I,ATE E4A5INATIN

BiologyCentre Number

Section II

28 marks Student Number

Attem!t "uestion 28 ,ommunicationAllo$ a%out 0 minutes 'or t(is section

)nswer the =uestion on the pad paper proided

se the graph paper proided separatel! to answer *uestion 7"8 7i8 in this option

"uestion 28 ,ommunication 7$. marks85arks

7a8 7i8 Name 'WF parts o" the e!e and brie"l! describe the "unction o" each part !ou name 2

7ii8 9denti"! the conditions under which re"raction o" light occurs 2

7iii8 9denti"! the re"ractie media in the e!e 2

7b8 'he table below shows di""erent waelengths o" the electromagnetic spectrum and theirrespectie colour that can be identi"ied b! the human e!e

,L- :A;ELENGT 6nm

Kiolet $+

Blue ,+?reen 53+

Lellow 5.+

Frange &$+

Red ,++

Compare the colour ision o" a named insect with that o" a human &

7c8 12plain how depth perception can be achieed 2

7d8 7i8 Compare the nature and "unctioning o" photoreceptor cells in mammals and insects +

7ii8 Futline the role o" rhodopsin in rod cells 2

7e8 'he

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7"8 'he data in the table gies the relatie amount o" light absorbed b! an indiidualhuman cone at di""erent waelengths o" light

:a

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Centre Number Student Number

BILG> 5-LTIPLE ,I,E ANS:E SEET

Select the alternatie )( B( C or D that best answers the =uestion

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Centre Number Student Number

Biolo9= Section II

'his sheet o" 5mm graph paper is re=uired "or students to answer =uestion 7d8 7i8 in each Fption0)ND # W9'0 LFR )NSW1R BFFJ;1'

12 sc eggs trial 2004

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