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GCE JAN 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 January 2008 Bitheola ocht Aonad Meas naithe AS 1 ag meas n Mod l 1: Bitheola ocht na gCeall [ASB11] D M IRT 15 EAN IR, IARN IN 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 1.3 ar f il le h s id le Ceist 3 sa ph ip ar seo. N scr obh do fhreagra ar an ghrianghraf seo. 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. Don Scr daitheaoir amh in Uimhir Ceiste 1 2 3 4 5 6 7 8 Marc Ioml n ASB1W8 3310.05 Marcanna Roinn A Scr daitheoir Amh in Marcanna 1 Athmharc L igh an sliocht seo a leanas ar thimthriall na cille, agus scr obh an focal is cu i ngach sp s leis an chuntas a chomhl n . Agus cealla eocar tacha i mbun deighilte gn omha , t ann siad tr phr iseas ar a dtugtar timthriall na cille. Le linn ________________ b onn tr imhs d ine f is ina mb onn pas ___________________ agus is ag an am seo a tharla onn macasamhl DNA. Tugtar _____________________ ar dheighilt n icl ach agus b onn ceithre phas le haithint lena linn. Sa ch ad cheann acu seo, b onn na cr mas im ag giorr agus ag ti chan, agus feictear gurb p ire cr maitid at i ngach ceann acu. __________________ a thugtar ar an ch ad phas eile mar a mb onn na cr mas im ag baili thar an phl na mhe nchriosach, agus sa ch ad phas eile ina dhiaidh seo b onn dh n icl as bhfoirmi . Leanann __________________ deighilt n icl ach agus is at i gceist anseo n c teaplasma dheighilt agus dh mhac-chill bhfoirmi . ASB1W8 3310.05 2 [4] [Turn over 2 Is dh dh igh iad idirleathadh agus idirleathadh ascaithe tr na dt ann substaint trasna scann n dhromchla na cille. Scr daitheoir Amh in Marcanna Athmharc (a) Luaigh difear amh in agus cos lacht amh in idir idirleathadh agus idirleathadh ascaithe. Difear _______________________________________________ _____________________________________________________ Cos lacht ____________________________________________ _____________________________________________________ [2] Le go mbeidh gn thmheitibileacht cheallach ann caithfidh aig ad ascorbach (vitim n C) agus cailcif ar l (vitim n D) a bheith ann agus caithfidh an d cheann acu bheith balta dul isteach i gcealla. Ach is ar bheala difri la, fach, a th ann siad trasna scann n dhromchla na cille cionn is go bhfuil aig ad ascorbach uiscethuaslagtha agus go bhfuil cailcif ar l lipidtuaslagtha. (b) Is strucht r scann n dhromchla na cille a chinneann an bealach a rachaidh gach ceann de na vitim n seo. M nigh c n d igh. Aig ad ascorbach ______________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ Cailcif ar l ___________________________________________ ________________________________________________________ ________________________________________________________ _____________________________________________________ [4] ASB1W8 3310.05 3 [Tiontaigh an leathanach 3 Is at in Grianghraf 1.3 n micreagraf leictreonach de chuid de chill eocar tach. Scr daitheoir Amh in Marcanna Athmharc (a) Sainaithin na gn ithe at lip adaithe A go D. A ___________________________________ B ___________________________________ C ___________________________________ D ___________________________________ [4] (b) Luaigh dh dhifear idir chill eocar tach agus cill phr car tach i dtaca le strucht r de. 1. ______________________________________________________ _________________________________________________________ 2. ______________________________________________________ ______________________________________________________________ [2] ASB1W8 3310.05 4 [Turn over 4 Catala onn an eins m liop is an t-imoibri seo a leanas. Scr daitheoir Amh in Marcanna Athmharc liop is Lipid _________________ + aig id shailleacha (a) Comhl naigh an chothrom id thuas leis an t irge at ar iarraidh a thaispe int. [1] (b) Ainmnigh an cine l d imoibri at chatal ag liop is anseo thuas. ______________________________________________________________ [1] Le linn turgnaimh ar ghn omh liop ise ag 3 theocht, tomhaiseadh pH an mheasc in imoibrithe i ndiaidh tr imhse ama. Taispe ntar na tortha sa t bla th os. I ngach c s, bh pH 7 ag an mheasc n imoibrithe ar dt s. Teocht ag a raibh an measc n imoibrithe ghoradh/ C pH an mheasc in imoibrithe i ndiaidh 60 n im ad 5 6.9 35 6.2 65 7.0 (c) Bh laghd sa pH agus an measc n imoibrithe ghoradh ag 35 C. M nigh cad chuige. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ______________________________________________________________ [2] (d) M nigh neamhghn omha ocht na liop ise ag an d theocht eile. 5 C ________________________________________________________ _____________________________________________________________ 65 C _______________________________________________________ __________________________________________________________ [2] ASB1W8 3310.05 5 [Tiontaigh an leathanach 5 Le linn turgnaimh ar osm is i bhf och in phlanda , tumadh sorc ir pr ta i dtuaslag in a raibh poit inseal tuaslag ite difri il acu ar feadh na tr imhse c anna ama. Tomhaiseadh fad tosaigh agus fad deiridh gach sorc ra pr ta, agus r omhadh an fad deiridh ina ch atad n den fhad tosaigh. Taispe ntar na tortha sa ghraf th os. Scr daitheoir Amh in Marcanna Athmharc 120 110 Fad deiridh ina 100 ch atad n den fhad tosaigh 90 80 2000 1600 1200 800 400 0 Poit inseal tuaslag ite an tuaslag in tumtha/kPa (a) An sorc ir pr ta a tumadh i dtuaslag n dar poit inseal tuaslag ite 2000 kPa, m nigh an t-athr ina fhad. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ______________________________________________________________ [3] (b) Agus an graf in s id agat, faigh poit inseal tuaslag ite an tuaslag in inar fhan fad an tsorc ra phr ta mar an gc anna. ______________________________________________________________ [1] ASB1W8 3310.05 6 [Turn over (c) Ba 80 mm fad tosaigh sorc ra pr ta. R omh an fad deiridh (ina mm) a bh ann i ndiaidh d bheith tumtha i dtuaslag n dar poit inseal tuasl gaite 400 kPa. (Taispe in do chuid oibre sa sp s th os.) Scr daitheoir Amh in Marcanna Athmharc Fad deiridh _________ mm [2] ASB1W8 3310.05 7 [Tiontaigh an leathanach 6 Sa l ar id th os taispe ntar an strucht r at ar n icl it d DNA. Scr daitheoir Amh in Marcanna Athmharc A base bun B (a) Ainmnigh na codanna at lip adaithe A agus B. A ___________________________________ B ___________________________________ [2] (b) Sa t bla th os taispe ntar comhdh anamh c atad nach na mbunanna sa DNA de speicis irithe. Speiceas Adain n C ot is n Guain n T m n E. coli (baict ar) 24 26 26 24 Giosta 32 18 18 32 Brad n 29 21 21 29 Muc 29 21 21 29 Duine 30 (i) Comhl naigh an t bla lena thaispe int c n c atad n de ch ot is n, ghuain n agus th m n a mbeife ag s il leis a bheith in DNA duine. M nigh an d igh ar th inig t ar do fhreagra . ______________________________________________________ ________________________________________________________ ________________________________________________________ _____________________________________________________ [3] ASB1W8 3310.05 8 [Turn over (ii) Is mar an gc anna iad c atad in na gceithre bhun don bhrad n agus don mhuc. Ach, mar sin f in, ainmhithe difri la ar fad a bh onn iontu agus sainphr it in d gcuid f in dt irgeadh acu. M nigh cad chuige. Scr daitheoir Amh in Marcanna Athmharc ______________________________________________________ ________________________________________________________ ________________________________________________________ _____________________________________________________ [2] ASB1W8 3310.05 9 [Tiontaigh an leathanach 7 Is at sa phr it in somatostatin n slabhra gearr aonair at d anta de 14 aim naig ad. Ala Gly A Cys Lys Phe Asn Athmharc Phe Trp S S Cys Scr daitheoir Amh in Marcanna Lys Ser Thr Phe Thr (a) (i) Ainmnigh an cine l naisc a thaispe ntar ag A. ____________________________________ [1] (ii) Cuirtear s os ar somatostatin mar phr it in threasach. M nigh c n f th. ________________________________________________________ _____________________________________________________ [1] Chun an gh in a ch da onn don phr it in seo a dh anamh, cuireann innealt ir g initeacha p ir n icl it d le ch ile. (b) C mh ad p ire n icl it d a bheadh de dh th leis an gh in seo a shint isi ? ______________________________________________________________ [1] An gh in shint isithe a ch da onn don phr it in, t n iclit it d curtha le gach dual ag foircinn urchomhaireacha le foircinn ghreamaitheacha a dh anamh. (c) C n bunt iste a bhaineann leis na foircinn ghreamaitheacha? _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ______________________________________________________________ [2] ASB1W8 3310.05 10 [Turn over T an phr it in seo t bhachtach i dtaca le leigheas de agus is f idir a th irgeadh ag baict ir a bhfuil innealt ireacht gh initeach d anta orthu. Cuirtear an gh in a ch da onn do somatostatin isteach i bplasmaid a bh onn ag feidhmi mar veicteoir. Scr daitheoir Amh in Marcanna Athmharc (d) Cuir s os ar an d igh a gcuirtear an gh in a ch da onn do somatostatin isteach i bplasmaid. _________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ______________________________________________________________ [3] ASB1W8 3310.05 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 na difr ochta idir cill ainmh agus cill phlanda i dtaca le strucht r agus feidhm de. [10] ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ASB1W8 3310.05 12 [Turn over Scr daitheoir Amh in ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ ASB1W8 3310.05 13 Marcanna Athmharc SEO DEIREADH AN SCR DPH IP IR Bitheola ocht TGO Ard-Fhotheastas (AS) Aonad Meas naithe AS 1 Mod l 1: Bitheola ocht na gCeall Ean ir 2008 Grianghraf 1.3 (Le h s id le Ceist 3) A B C C D Foinse: Dr Gopal Murti, Science Photo Library 30 m ASB1W8 3310.06

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Additional Info : Gce Biology January 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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