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GCE MAY 2007 : (A2 1) Co-ordination, Biochemistry and Environment (Irish Medium)

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Uimhir L rionaid 71 Uimhir Iarrth ra ADVANCED General Certificate of Education 2007 Bitheola ocht Aonad Meas naithe A2 1 ag meas n Mod l 4: Comhordan idi , Bithcheimic agus Timpeallacht [A2B11] D LUAIN 14 BEALTAINE, IARN IN AM 1 uair 30 n im ad. TREOIR D IARRTH IR Scr obh d Uimhir L rionaid agus d Uimhir Iarrth ra sna sp sanna chuige sin ag barr an leathanaigh seo. Scr obh do fhreagra sna sp sanna chuige sin sa cheistph ip ar seo. Freagair gach ceann de na naoi gceist. T Grianghraf 4.8 ar f il le h s id le Ceist 8 sa ph ip ar seo. N scr obh do fhreagra ar an ghrianghraf seo. EOLAS D IARRTH IR Is 75 an marc ioml n don ph ip ar seo. T 60 marc ag dul do Roinn A. T 15 mharc ag dul do Roinn B. Ba ch ir duit tuairim is 20 n im ad a chaitheamh ar Roinn B. Glactar leis go bhfreagr idh t Roinn B i bpr s lean nach. Meas n far caighde n na cumars ide scr ofa i Roinn B. L ir onn figi ir idir l ib n ar thaobh na l imhe deise de leathanaigh na marcanna at ag dul do gach ceist n do gach cuid de cheist. Don Scr daitheoir amh in Uimhir Ceiste 1 2 3 4 5 6 7 8 9 Marc Ioml n A2B1S7 2607.05 Marcanna 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA LEATHANACH B N A2B1S7 2607.05 2 [Turn over Rionn A Scr daitheoir Amh in Marcanna 1 Athmharc T r l l rnach ag horm n antafhualach (ADH) in osmairial . B onn ifeacht aige ar an d igh a mb onn na du in ag feidhmi . (a) Cuir s os ar ifeacht ADH ar an d igh a mb onn na du in ag feidhmi . _________________________________________________________ _________________________________________________________ _________________________________________________________ _______________________________________________________ [2] (b) B onn t l ADH chosc ag ain ist isigh. C n ifeacht, dar leat, a bheidh ag ain ist sigh ar th irgeadh fuail? _________________________________________________________ 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA _______________________________________________________ [1] A2B1S7 2607.05 [Tiontaigh an leathanach 2 Is antasubstaint iad pr it in a bh onn dt irgeadh agus dt l ag cealla plasma de bharr antaigin coimhth ocha a bheith i l thair. Scr daitheoir Amh in Marcanna Athmharc (a) Cuir s os ar an d igh a mb onn cealla plasma dt irgeadh mar fhreagairt ar antaigin choimth och. _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _______________________________________________________ [3] Sa l ar id seo th os, l ir tear cill phlasma de r ir mar a fheictear tr mhicreasc p leictreonach. 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA Foinse: New Perspectives in Advanced Biology, Martin Hanson, Hodder and Stoughton, 1999 (b) An fhaisn is sa l ar id in s id agat, cuir s os ar dh dh igh a bhfuil cealla plasma oiri nach le go dt irgfear l on m r d antasubstaint . 1. _______________________________________________________ _________________________________________________________ 2. _______________________________________________________ _______________________________________________________ [2] A2B1S7 2607.05 4 [Turn over An luibhic d Paraquat a bh onn t irgeadh ar mhaithe le c rsa tr cht la, b onn ifeacht aici ar an ch im sholas-sple ch de fh taisint is, agus ag cur isteach go sonrach ar chumas an chl raplaist chun NADPH a th irgeadh. Scr daitheoir Amh in Marcanna Athmharc (a) (i) Luaigh an su omh sa chl raplast ina mb onn NADPH th irgeadh. ___________________________________________________ [1] (ii) Luaigh dh th irge eile de ch im sholas-sple ch na f taisint ise. 1. _____________________ 2. _____________________ [1] (b) Luaigh go hachomair an fheidhm a bh onn ag NADPH sa ch im sholasneamhsple ch de fh taisint is ina dhiaidh sin. _________________________________________________________ _______________________________________________________ [1] (c) Ar deireadh, stopann riospr id chomh maith i bplanda a c ire ladh le Paraquat agus faigheann siad b s. Luaigh seicheamh imeachta a d fh gfadh go stopfadh riospr id. _________________________________________________________ _________________________________________________________ _________________________________________________________ 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA _______________________________________________________ [2] A2B1S7 2607.05 [Tiontaigh an leathanach 4 B onn ifeacht ag an teocht sa timpeallacht sheachtrach ar mheitibileacht inteirmeach (aonteasacha) agus ar mheitibileacht eictiteirmeach (poiciliteirmeacha), ach ar dh igheanna difri la. Sa ghraf th os, taispe ntar an ifeacht a bh onn ag teocht na timpeallachta ag athr ar r ta meitibileach an d ghr pa. Scr daitheoir Amh in Marcanna Athmharc R ta meitibileach/aonaid threallacha 7 6 5 4 3 2 inteirm eictiteirm 1 0 0 10 20 30 40 Teocht timpeallachta/ C (a) Agus teocht na timpeallachta ag titim faoi 20 oC tagann m ad ar r ta meitibileach inteirme. M nigh cad chuige? _________________________________________________________ _________________________________________________________ _________________________________________________________ _______________________________________________________ [2] (b) B onn r ta meitibileach inteirme seasta idir 25 oC agus 40 oC. Cad iad na f thanna at leis seo? _________________________________________________________ _________________________________________________________ _______________________________________________________ [2] 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA _________________________________________________________ A2B1S7 2607.05 [Turn over (c) Agus teocht na timpeallachta ag m ad tagann m ad ar r ta meitibileach eictiteirme. M nigh cad chuige? Scr daitheoir Amh in Marcanna Athmharc _________________________________________________________ _________________________________________________________ _________________________________________________________ _______________________________________________________ [2] (d) Agus teocht seal ann, is m go m r r ta meitibileach inteirme n r ta meitibileach eictiteirme. Luaigh bunt iste amh in agus m bhunt iste amh in a bhaineann leis seo. Bunt iste _________________________________________________ _________________________________________________________ M bhunt iste ______________________________________________ 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA _______________________________________________________ [2] A2B1S7 2607.05 7 [Tiontaigh an leathanach Sa tsreabhl ar id seo th os taispe ntar ceithre ch im (lip adaithe 1 go 4) i ngliceal . Scr daitheoir Amh in Marcanna Athmharc Gl c s 2 ATP C im 1 2 ADP Biosfhosf it frucht is C im 2 Fosf it tr is NAD+ ADP + Pi C im 3 NADH (+H+) Fosf it tr is NAD+ ADP + Pi NADH (+H+) ATP Biosfhosf it gliocr ite ADP ATP Biosfhosf it gliocr ite ADP C im 4 ATP ATP Pior v it Pior v it (a) Luaigh glanbhreisi ATP mh il n amh in de ghl c s taobh istigh de ghliceal . _______________________________________________________ [1] (b) De ghn th n bh onn gl c s teorantach taobh istigh de mhat nchill. Cad chuige? _________________________________________________________ 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA _______________________________________________________ [1] A2B1S7 2607.05 8 [Turn over (c) B onn NAD+ de dh th i gc im 3 agus athghintear tr hidrigin a bhaint ar shi l NADH. M nigh an d igh a mb onn hidrigin baint ar shi l NADH nuair Scr daitheoir Amh in Marcanna Athmharc (i) nach mb onn ocsaigin teorantach ___________________________ ______________________________________________________ ______________________________________________________ ___________________________________________________ [2] (ii) a bh onn ocsaigin teorantach ______________________________ ______________________________________________________ ______________________________________________________ ___________________________________________________ [2] (d) Is f idir na hidirmhe naigh i gconair meitibileacha a fh il tr d an ifeacht a bh onn ag coscair sonracha a fhiosr . Iodoethanoate, coisceann s an eins m dhihidrigion ise a mb onn c im 3 i ngliceal catal aici. C n ifeacht a bheadh ag iodoethanoate ar leibh il idirmhe nacha glicealaithe? _________________________________________________________ _________________________________________________________ _________________________________________________________ 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA _______________________________________________________ [2] A2B1S7 2607.05 [Tiontaigh an leathanach Sa l ar id th os l ir tear sionapsa idir dh n archill ch ngaracha. Rinneadh an l ar id a shimpli ina 3 r igi n at lip adaithe 1, 2 agus . Scr daitheoir Amh in Marcanna Athmharc treo na r ge 1 2 3 Sa t bla th os tugtar faisn is ar 3 n arathocsain a bh onn dt irgeadh ag 3 org nach bheo. Tugtar chomh maith an ifeacht a bh onn acu ar n arch ras a n- ospartach. (a) Comhl naigh an t bla tr na huimhreacha cu n l ar id thuas a chur isteach lena l iri c n r igi n de chuid an tsionapsa a mb onn ifeacht ag gach n arthocsain air. Org nach beo An ifeacht ar an n arch ras Damh n alla funnel web Bloc lann s cain il chailciam Krait (nathair nimhe) Bloc lann s gabhd ir aic itiolcoil n Sceart n pairilise na hAstr ile Coisceann s scaoileadh aic itiolcoil n N arthocsain Agatoxin Alphabungarotoxin Holocyclotoxin R igi n an tsionapsa a mb onn ifeacht air [3] 3 27.7.06EA Is foirm eile de n arthocsain tetrodotoxin a bh onn th irgeadh ag ochtapas an fh inne ghoirm agus ag an iasc bolgach. B onn na cain il s idiam ar scann n n archealla an ospartaigh mbloc il ag tetrodotoxin agus n f idir r oga a ghini int. Sa l ar id th os l ir tear an modh a mb onn s ag gn omh . tetrodotoxin ian s idiam 2 30.5.06BP 1 11.3.06EA cain al s idiam cain al s idiam scann n pr it in tras-scann in A2B1S7 2607.05 10 [Turn over (b) C n ifeacht, dar leat, a bheadh ag an bhloc il seo ar ghn thfheidhmi na n archille? Scr daitheoir Amh in Marcanna Athmharc _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _______________________________________________________ [3] Is bia den ch ad scoth an t-iasc bolgach i dt ortha amhail an tSeap in. M dh antar b ist ireacht agus c caireacht ch ramach ar an iasc, athraitear agus scriosfar an tetrodotoxin, agus beidh an t-iasc ullamh le hithe ansin. (c) (i) C n d igh, dar leat, a bhf gann c caireacht nach nd anfaidh an tetrodotoxin aon dochar don duine a osfaidh an t-iasc? _____________________________________________________ _____________________________________________________ _____________________________________________________ ___________________________________________________ [2] (ii) C n d igh, dar leat, nach mb onn ifeacht ag a chuid tetrodotoxin f in ar an iasc bolgach? _____________________________________________________ 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA ___________________________________________________ [1] T r n ag n areolaithe tetrodotoxin a s id mar phianmh ch n, pianmh ch n nach mbeadh feidhm and ile leis agus a d fh adfa a thabhairt d othair at buailte le pian ainsealach. (d) C n cine l de n archill a bhf adfa an cine l seo de ch ire il tetrodotoxin a s id uirthi? _______________________________________________________ [1] A2B1S7 2607.05 11 [Tiontaigh an leathanach 7 (a) (i) Agus org naigh mharbha ag dianscaoileadh, ainmnigh an t-ian a bhfuil n trigin ann a bh onn scaoileadh. Scr daitheoir Amh in Marcanna Athmharc ___________________________________________________ [1] (ii) Ainmnigh an t-ian a bhfuil n trigin ann a bh onn ions ag fr amhacha planda. ___________________________________________________ [1] (iii) An t-ian a bhfuil n trigin ann a bh onn scaoileadh ag dianscaoilteoir , ainmnigh an gr pa de bhaict ir ithreach a bh onn athr ina ian a bhfuil n trigin ann a bh onn ions ag planda . ___________________________________________________ [1] (b) Ian a bheith ar f il san ithir, baineann s go d reach lena thuaslagthacht, at ag brath ar pH na hithreach. Sa ghraf th os taispe ntar an ifeacht a bh onn ag pH ar an tuaslagthacht de cheithre ian mhianracha. (An ti s at sna banda cothrom nacha, l ir onn s an tuaslagthacht at sna hiain mhianracha.) Is iad na 3 ian mhianracha ina bhfuil n trigin (N), fosfar (P) agus potaisiam (K) is m a bh onn de dh th ar phlanda . niniatnoc -P noi K muinimulA 01 N- containing ion Ian a bhfuil N ann snoi larenim fo ytilibulos solubility of ian mianrach tuaslagthacht mineral ions iniatnoc -N 5.4 9 4.5 9 5.5 8 5.5 8 5.6 7 6.5 7 Hp 5.7 6 pH 7.5 6 5.8 5 8.5 5 5.9 4 9.5 4 P- containing ion Ian a bhfuil P ann K ion Ian K Ian al manaim Aluminium ion 10 Foinse: Arna chur in oiri int as Applied Ecology, Geoff Hayward, Nelson, 1992 (i) An fhaisn is thuas in s id agat, faigh an raon optamach pH le haghaidh f s planda. M nigh do fhreagra. Scr daitheoir Amh in Marcanna Athmharc _____________________________________________________ _____________________________________________________ ___________________________________________________ [2] A2B1S7 2607.05 12 [Turn over (ii) Agus b isteach iontach aig adach ann b onn al manam l isteadh go r idh amach as an ithir. s id an fhaisn is sa ghraf lena mh ni cad chuige. Scr daitheoir Amh in Marcanna Athmharc _____________________________________________________ ___________________________________________________ [1] (iii) M nigh go hachomair na hiarmhairt a bheidh ann m bh onn ti chan ard d al manam ag dul isteach in aibhneacha agus i lochanna. _____________________________________________________ _____________________________________________________ _____________________________________________________ ___________________________________________________ [2] (iv) M nigh go hachomair c n f th a mb onn b isteach iontach aig adach. _____________________________________________________ _____________________________________________________ _____________________________________________________ 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA ___________________________________________________ [2] A2B1S7 2607.05 1 [Tiontaigh an leathanach 8 (a) Is at in Grianghraf 4.8 n leictreonmhicreagraf tarchuir (TEM) ina l ir tear cuid de shn ith n mat in str ocaigh. (Breisi r omhaire a chuir an dath ar f il). Scr daitheoir Amh in Marcanna Athmharc (i) Sainaithin na gn ithe at lip adaithe A go D. A ___________________________________ B ___________________________________ C ___________________________________ D ___________________________________ [4] (ii) An ghn at lip adaithe A, m nigh an fheidhm a bh onn l i maidir le crapadh mat in. _____________________________________________________ ___________________________________________________ [1] (b) Sa l ar id taispe ntar c imeanna a bhaineann le teoiric an fhilim id shleamhn naigh ar chrapadh mat in. C im 1 filim ad aictine ceann mi isine C im 4 C im 2 3 27.7.06EA filim ad mi isine foirm ocht chrosdroichid C im 3 1 11.3.06EA 2 30.5.06BP gluaiseacht aictine Foinse: Arna chur in oiri int as Biological Science 2, 3 eagr n, Taylor Green and Stout (ed. Soper), Cambridge 1997 A2B1S7 2607.05 14 [Turn over (i) Cuir s os ar sheicheamh na n-imeachta a fh gann go dtarla onn gach ceann de na c imeanna seo a leanas a thaispe ntar sa l ar id. l Scr daitheoir Amh in Marcanna Athmharc C im 2 _____________________________________________ _____________________________________________________ ___________________________________________________ l C im 3 _____________________________________________ _____________________________________________________ ___________________________________________________ l C im 4 _____________________________________________ _____________________________________________________ _________________________________________________ [3] 3 27.7.06EA (ii) Agus uaschrapadh mat in ar bun, b onn an fad idir na l nte Z ghiorr go 50% den fhad fhosaithe 2 m. Gach uair a rothla onn trasdroicheadh mi isine tarraing tear an filim ad aictine fad 10 nm. Faigh an l on uaireanta a chaithfidh na trasdroichid rothl le go mbeidh uaschrapadh ann. (Taispe in do chuid oibre.) 1 11.3.06EA 2 30.5.06BP Freagra _________________ [3] A2B1S7 2607.05 1 [Tiontaigh an leathanach Roinn B Scr daitheoir Amh in Marcanna Athmharc Sa roinn seo t thar ag s il leis go dtabharfaidh t do fhreagra i bpr s lean nach, le l ar id mar thaca ocht leis, san it ar cu sin. Cuirtear i gcuimhne duit go bhfuil suas le dh mharc sa cheist seo ag dul do chaighde n na cumars ide scr ofa. [2] Scr obh cuntas ar an fheidhm a bh onn le l ocha f tagabhd ra sa ts il mhamach agus maidir le bl th i bplanda a rial . [13] ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ A2B1S7 2607.05 1 [Turn over Scr daitheoir Amh in ____________________________________________________________ Marcanna Athmharc ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ A2B1S7 2607.05 17 [Tiontaigh an leathanach Scr daitheoir Amh in ____________________________________________________________ Marcanna Athmharc ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ A2B1S7 2607.05 18 [Turn over Scr daitheoir Amh in ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ 1 11.3.06EA 2 30.5.06BP 3 27.7.06EA ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ A2B1S7 2607.05 1 Marcanna Athmharc 3 27.7.06EA 2 30.5.06BP 1 11.3.06EA Cuireadh isteach ar chead chun an t- bhar c ipchirt uile a at irgeadh. I gc sanna irithe is f idir n r irigh le CCEA teagmh il a dh anamh le h in ir c ipchirt agus beidh s s sta na hadmh lacha sin a f gadh ar l r a chur ina gceart amach anseo ach a chur ar an eolas. S 5/05 -051-1 A2B1S7 72607 20 [Turn over

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Additional Info : Gce Biology May 2007 Assessment Unit A2 1 - Module 4: Co-ordination, Biochemistry and Environment(Irish Medium)
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