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GCE JUN 2008 : (AS 1) Cell Biology (Irish Medium)

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Uimhir L rionaid 71 Uimhir Iarrth ra ADVANCED SUBSIDIARY (AS) General Certificate of Education 2008 Bitheola ocht Aonad Meas naithe AS 1 ag meas n Mod l 1: Bitheola ocht na gCeall [ASB11] D M IRT 3 MEITHEAMH, MAIDIN AM 1 uair an chloig. 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 hocht gceist. T Grianghraf 1.4 ar f il le h s id le Ceist 4 sa ph ip ar seo. N scr obh do fhreagra ar an ghrianghraf seo. Don Scr daitheaoir amh in Uimhir Ceiste 1 EOLAS D IARRTH IR Is 55 an marc ioml n don ph ip ar seo. T 43 marc ag dul do Roinn A. T 12 mharc ag dul do Roinn B. Ba ch ir duit tuairim is 15 n im ad a chaitheamh ar Roinn B. T thar ag s il 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. 2 3 4 5 6 7 8 Marc Ioml n ASB1S8 3309.03 Marcanna Roinn A Scr daitheoir Amh in Marcanna 1 Athmharc Sainaithin an focal n an fr sa a gcuireann gach r iteas seo a leanas s os air. (a) Macram il n ina bhfuil gliocr l nasctha le 3 aig ad shailleacha. ______________________________________________________ [1] (b) M il n org nach ina bhfuil n trigin i bhfoirm NH2 agus carbocsailghr pa COOH, nasctha leis an adamh carb in c anna. ______________________________________________________ [1] (c) Leibh al strucht r polaipeipt de a tharla onn nuair a fhilleann s le cruth cruinneogach ioml n a fhoirmi . ______________________________________________________ [1] (d) An r igi n de dhromchla eins me a nascann an tsubstr it le linn an imoibrithe a chatala tear ag an eins m. ______________________________________________________ [1] ASB1S8 3309.03 2 [Turn over 2 Taispe nann an l ar id th os iont g il baict ir ag cill fhagaic teach agus strucht ir a bhaineann lena dh le ina dhiaidh. Scr daitheoir Amh in Marcanna Athmharc baict ar New Perspectives in Advanced Biology by Martin Hanson & Ann Hanson, published by Hodder and Stoughton, 1999, ISBN 0340664436 "Reproduced by permission of Hodder & Stoughton Ltd". (a) Cuir s os ar an phr iseas tr na n-iont gtar an baict ar ag fagaic ot is. _________________________________________________________ _________________________________________________________ _________________________________________________________ ______________________________________________________ [2] (b) Cuir s os ar an phr iseas tr na dt irgtear l seas im. _________________________________________________________ _________________________________________________________ _________________________________________________________ ______________________________________________________ [2] (c) Cuir s os ar an d igh a dtarla onn d le an bhaict ir mar gheall ar l seas im. _________________________________________________________ _________________________________________________________ _________________________________________________________ ______________________________________________________ [2] ASB1S8 3309.03 3 [Tiontaigh an leathanach 3 Taispe nann an l ar id th os cealla oinni in arna dtumadh i dtuaslag n si cra. Scr daitheoir Amh in Marcanna Athmharc Foinse: A-level Biology, W D Phillips and T J Chilton, Oxford University Press, 1989 (a) Is l n n id i gc na poit inseal uisce cille. M nigh c n f th. _________________________________________________________ ______________________________________________________ [1] (b) (i) Na cill bhair agus an tuaslag n si cra (seachtrach) thumadh, cuir a bpoit insil uisce choibhneasta i gcompar id lena ch ile. ______________________________________________________ ___________________________________________________ [1] (ii) M nigh cuma na gceall oinni in a thaispe ntar sa l ar id thuas. ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ___________________________________________________ [3] ASB1S8 3309.03 4 [Turn over 4 Is at i nGrianghraf 1.4 n micreaghraf solais de chealla inn fr imhe oinni in a bhfuil cilldheighilt mhiot iseach ag tarl d ibh. Scr daitheoir Amh in Marcanna Athmharc (a) Sainaithin an ch im mhiot ise a thaispe ntar ag gach cill lip adaithe A go D. A ___________________________________ B ___________________________________ C ___________________________________ D ___________________________________ [4] (b) Socraigh na litreacha A go D leis na c imeanna i dtimthriall na cille a chur sa seicheamh ceart. ______________________________________________________ [1] (c) s id an barra sc la (ag bun an ghrianghraif) le formh ad an mhicreaghraif a r omh. Taispe in do chuid oibre. Freagra ______________ [2] ASB1S8 3309.03 5 [Tiontaigh an leathanach 5 Rinneadh turgnamh lena fh il amach cad an ifeacht at ag ocsaigin ar iont g il iain photaisiam ag diosca d fh och n pr ta. Scr daitheoir Amh in Marcanna Athmharc Tumadh diosca d fh och n pr ta i dtuaslag in a raibh iain photaisiam iontu. Aera odh na tuaslag in agus fuair gach ceann acu c atad n difri il ocsaigine san aer a boilgearna odh tr d. Ansin, tomhaiseadh m id na n-ian potaisiam (K+) a bh n-ions ag na diosca pr ta. Taispe ntar na tortha sa ghraf th os. Iont g il K+/mg g 1 f och n planda 500 400 300 200 100 0 0 10 20 30 40 50 C atad n ocsaigine sa mheasc n aeraithe (a) Luaigh dh athr g ba ch ir a rial le linn an turgnaimh seo (tr ithe an fh och in phr ta as an ireamh). 1. _______________________________________________________ 2. ____________________________________________________ [2] (b) Cuir s os ar an ifeacht a bh onn ann ar iont g il iain photaisiam nuair a bh onn ocsaigin ar f il. _________________________________________________________ _________________________________________________________ _________________________________________________________ ______________________________________________________ [2] ASB1S8 3309.03 6 [Turn over (c) M nigh an d igh a gcuireann na tortha fianaise ar f il gur tr d iompar gn omhach a tharla onn iont g il ian potaisiam. Scr daitheoir Amh in Marcanna Athmharc _________________________________________________________ _________________________________________________________ _________________________________________________________ ______________________________________________________ [2] ASB1S8 3309.03 7 [Tiontaigh an leathanach 6 Is eins m peiction is a th irgtear ag cealla fungais. T de chumas aici peictin a bh onn i lann g l ir cealla planda a dh le . Cuid onn s seo leis na fungais dul isteach i bpr taplasma na cille planda mar fhoinse chothaitheach fh ideartha. Scr daitheoir Amh in Marcanna Athmharc (a) (i) C n t-ian neamhorg nach at de dh th leis an lann g l ir a dh anamh? ___________________________________________________ [1] (ii) Luaigh su omh na lann ige l ir i bhf och n planda. ___________________________________________________ [1] F adtar peiction is a s id ar bhonn tr cht la leis na s nna tortha taobh istigh de la on tortha a rochtain. Go traidisi nta, cuireadh eins m peiction ise le la on tortha i mbaiscimoibreoir a coinn odh ag 40 C. Ansin, ligeadh do pheiction is an la on tortha a dh le agus f isceadh seo ansin leis an s a th irgeadh. (b) M nigh an f th a gcoinneofa an baisc-imoibreoir ag 40 C. ______________________________________________________ [1] Inniu sctar s nna tr d na heins m peiction ise a dh luaili i gcol nimoibreoir a sreabhann an la on tortha tr d. (c) Luaigh d igh amh in a bhf adfa peiction is a dh luaili . ______________________________________________________ [1] (d) Luaigh dh bhunt iste a d fh adfadh a bheith ag an chol n-imoibreoir eins me d luailithe ar an bhaisc-imoibreoir thraidisi nta. 1. _______________________________________________________ _________________________________________________________ 2. _______________________________________________________ ______________________________________________________ [2] ASB1S8 3309.03 8 [Turn over (e) Cuir s os go hachomair ar mhodh amh in a bhf adfa r ta na gn omha ochta peiction ise a mh ad sa chol n-imoibreoir agus cuir s os ar an d igh a m ad dh an modh seo ar ghn omha ocht eins me. Scr daitheoir Amh in Marcanna Athmharc _________________________________________________________ _________________________________________________________ _________________________________________________________ ______________________________________________________ [2] ASB1S8 3309.03 9 [Tiontaigh an leathanach 7 Is an eins m polygalacturonase (PG) is c is le tortha amhail tr ta ir bog. Le go mbeidh seilfr is faide ag tr ta , t eolaithe, tr d innealt ireacht gh initeach ar phlanda tr ta , i ndiaidh an tr ta Flavr Savr a chruth nach mbaineann br craicinn d le linn muiriompair agus a bhfuil seilfr is faide aige. Chun seo a dh anamh, leithlis odh ar dt s an gh in PG at ina c is le t irgeadh na heins me. D s id eolaithe an gh in leithlisithe seo le hantaigh in , n g in neamhfheidhmi il (nonsense) PG a chruth agus cuireadh seo isteach sna planda tr ta ansin. Coisceann an gh in neamhfheidhmi il seo aistri na g ine PG bunaidh sa phlanda tr ta agus coisctear t irgeadh eins me d bharr. Sa l ar id th os tugtar achoimre ar ghn omh na g ine PG neamhfheidhmi la a cuireadh isteach. Portion gh in PG bhunaidh Cuid denof original PG gene A T C G C G A T T A Portion of nonsense PG gene Cuid den gh in PG neamhfheidhmi il C G T A G C G C T A A T G C U G G U A G U A C de mRNA bunaidh agus de mRNA original mRNA and nonsense mRNA match up to produce double G neamhfheidhmi il le ch ile chun Process X Pr iseasX U C A mRNA neamhfheidhmi il U Nonsense mRNA C G mRNA Original mRNA bunaidh A C C A Original mRNA mRNA bunaidh mRNA Nonsense mRNA C G A U Meaitse lann bunanna comhl ntacha Complementary bases of RNA d dhualach a dh anamh. stranded RNA. Translation is aistri Coisctear prevented NNo polygalacturonase enzyme produced th irgtear aon eins m polygalacturonase N ir onn toradh bog No softening of fruit ASB1S8 3309.03 10 [Turn over (a) Cuir s os go hachomair ar dh igh amh in a bhf adfadh na heolaithe an gh in PG bhunaidh a leithlisi . Scr daitheoir Amh in Marcanna Athmharc _________________________________________________________ ______________________________________________________ [1] (b) Cuir s os ar an d igh a bhf adfa an gh in PG neamhfheidhmi il a chur isteach sa phlanda tr ta . _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ ______________________________________________________ [3] (c) Ainmnigh an pr iseas dar lip ad X ar an l ar id. ______________________________________________________ [1] (d) Luaigh dh dh igh a gcoiscf aistri tr d an mRNA feidhmi il a mheaitse il leis an mRNA neamhfheidhmi il agus t irgeadh na heins me polygalacturonase a chosc d bharr. 1. _______________________________________________________ _________________________________________________________ 2. _______________________________________________________ ______________________________________________________ [2] ASB1S8 3309.03 11 [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] 8 Scr obh cuntas ar dh ileadh agus r l carbaihiodr it , ar a n- ir tear monaisi icr d , d shi icr d agus polaisi icr d . [10] Monaisi icr d _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ D shi icr d _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ ASB1S8 3309.03 12 [Turn over Scr daitheoir Amh in _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ Polaisi icr d _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ ASB1S8 3309.03 13 Marcanna Athmharc SEO DEIREADH AN SCR DPH IP IR ASB1S8 530-048-1 S 3/07 3309.03 16 [[Turn over Turn Bitheola ocht TGO Ard-Fhotheastas (AS) Aonad Meas naithe AS 1 Mod l 1: Bitheola ocht na gCeall Samhradh 2008 Grianghraf 1.4 (Le h s id le Ceist 4) A D B C Foinse: M I Walker/Science Photo Library 30 m ASB1S8 3309.04

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Additional Info : Gce Biology June 2008 Assessment Unit AS 1 Module 1: Cell Biology (Irish Medium)
Tags : General Certificate of Education, A Level and AS Level, uk, council for the curriculum examinations and assessment, gce exam papers, gce a level and as level exam papers , gce past questions and answer, gce past question papers, ccea gce past papers, gce ccea past papers

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