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GCE JAN 2011 : (AS 1) Molecules and Cells -Revised (Irish Medium)

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Uimhir L rionaid 71 Uimhir Iarrth ra ADVANCED SUBSIDIARY (AS) General Certificate of Education January 2011 Bitheola ocht ag meas n M il n agus Cealla AB111 Aonad Meas naithe AS 1 [AB111] D M IRT 11 EAN IR, MAIDIN 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 scr dph 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. 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. 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. Cuirtear i gcuimhne duit go bhfuil g le Gaeilge mhaith agus cur i l thair soil ir sna freagra agat. s id t arma ocht eola och sna freagra uilig. 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, agus beidh 2 mharc ar a mh ad ag dul d . 6397.06 Don Scr daitheoir amh in Uimhir Marcanna Ceiste 1 2 3 4 5 6 7 8 Marc Ioml n Roinn A Scr daitheoir Amh in Marcanna 1 Athmharc Tagra onn na r itis sa t bla seo th os do chuid de na gn ithe a bh onn i gcill phr car tach agus i gcill eocar tach. Is f idir nach mbeidh cuid de na gn ithe ach i gcine l amh in de na cealla n is f idir go mbeidh siad sa d chine l cille araon. M t an ghn ann, cuir tic ( ) sa bhosca chu agus, mura bhfuil s ann, cuir cros ( ) sa bhosca chu . (N f g aon cheann de na bosca folamh.) Gn Cill phr car tach Cill eocar tach Plasmaid Ribeas m Coimpl asc Golgi [3] 6397.06 2 [Turn over 2 Seasann an l ar id seo th os do chill phlanda at tumtha i dtuaslag n folctha dar poit inseal tuaslag ite 1200 kPa ( seachtrach). Taispe ntar ann chomh maith poit inseal tuaslag ite ( s) agus poit inseal br ( p) na cille. Scr daitheoir Amh in Marcanna Athmharc seachtrach = 1200 kPa s = 1400 kPa p = 500 kPa (a) R omh poit inseal uisce ( cill) na cille. Freagra _____________________ [1] (b) D an cur s os agus tabhair m ni ar ghluaiseacht an uisce idir an chill agus an tuaslag n folctha aici. _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [2] (c) Tarraing l ar id den chill lena thaispe int cad an chuma dheiridh a bheidh uirthi sa tuaslag n folctha. [2] 6397.06 3 [Tiontaigh an leathanach 3 (a) L igh an sliocht seo a leanas a chuireann s os ar strucht r pr omh il pr it ine agus scr obh an focal cu n na focail chu sna sp sanna leis an chuntas a chomhl n . Scr daitheoir Amh in Marcanna Athmharc Is polaim ir iad pr it in ina bhfuil slabhra fada de at gceangal le ch ile ag imoibrithe chun go leor naisc a dh anamh. An strucht r pr omh il a thugtar ar sheicheamh na monaim ir i bpr it in agus is i org naigh a dh antar a ionch d . [4] (b) Is m il n coimpl ascacha iad pr it in a bhfuil leibh al eagraithe acu at n os casta n an strucht r pr omh il. Cuir s os ar an d igh a dt irgtear cruth ioml n deiridh i bpr it in. _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [4] (c) Cuir s os ar an athr datha a chuireann in i l go bhfuil pr it in i sampla bia a dh antar a th st il le himoibr Biuret. _____________________________________________________ [1] 6397.06 4 [Turn over 4 Is at in Grianghraf 1.4 micreagraf leictreonach de chodanna de dh chill mh sc nacha ch ngaracha m isifille a bh onn i nduilleog planda geir iniam. Scr daitheoir Amh in Marcanna Athmharc (a) (i) Sainaithin na strucht ir at lip adaithe A go D. A _____________________________ B _____________________________ C _____________________________ D _____________________________ [4] (ii) M nigh su omh na n icl as sna cealla m isifille seo. ___________________________________________________ _________________________________________________ [1] (b) s id an barra sc la le formh ad an mhicreagraif leictreonaigh seo a r omh. (Taispe in do chuid oibre) Freagra _____________________ [3] 6397.06 5 [Tiontaigh an leathanach 5 (a) Seasann an l ar id seo th os don tsamhail mh s iceach shreabh nach den scann n dromchla cille. Scr daitheoir Amh in Marcanna Athmharc A B C D (i) Sainaithin na strucht ir at lip adithe A go D. A _________________________________ B _________________________________ C _________________________________ D _________________________________ [4] (ii) Cuir X ar an l ar id le dromchla seachtrach an scann in a l iri . Luaigh f th le do fhreagra. ___________________________________________________ _________________________________________________ [1] 6397.06 6 [Turn over (b) Taispe nann an t bla th os an ifeacht a bh onn ann ar 3 mheicn ocht dhifri la d iompar scann in nuair a athra tear na tosca. Athr ar thosca Leibh il ocsaigine a mh ad Ciain d a chur leis (nimh riospr ide) N os m iompr ir scann in Scr daitheoir Amh in Marcanna Athmharc An ifeacht a bh onn ann ar r ta gluaiseachta nuair a athra tear na tosca Meicn ocht Meicn ocht Meicn ocht 1 2 3 M ad suntasach ar an r ta Laghd suntasach ar an r ta M ad ar an r ta N l aon ifeacht ar an r ta N l aon ifeacht ar an r ta M ad ar an r ta N l aon ifeacht ar an r ta N l aon ifeacht ar an r ta N l aon ifeacht ar an r ta An fhaisn is sa t bla in s id, sainaithin na meicn ochta difri la d iompar scann in agus, i ngach c s, luaigh f th leis an tsainaithint. (i) Meicn ocht 1 Sainaithint __________________________________________ F th _______________________________________________ _________________________________________________ [2] (ii) Meicn ocht 2 Sainaithint __________________________________________ F th _______________________________________________ _________________________________________________ [2] (iii) Meicn ocht 3 Sainaithint __________________________________________ F th _______________________________________________ _________________________________________________ [2] 6397.06 7 [Tiontaigh an leathanach LEATHANACH B N 6397.06 8 [Turn over 6 (a) Is ion-n icl is ghearrtha an eins m BamHl a bhfuil an l thair aithinte GGATCC aici ag gearradh DNA ina bhloghanna idir na bunanna GG. Scr daitheoir Amh in Marcanna Athmharc Seasann na 3 l ne seo th os do na bunanna ar dhual amh in d fhad DNA, 120 n icl it d. AATGGGTACGCACAGTGGATCCACGTAGTATGCGATGCGT AGTTGATAGATAGATAGATAGATAGATAGATATTTTATCG TGCTGTACGGATCCGGAAGTGGCGATGAGGATCCATGCAA (i) Abair gur gearradh an fad seo de DNA leis an ion-n icl is ghearrtha BamHl. C mh ad blogh a th irgf ansin? [1] Freagra (ii) T athsheicheamh micreasatail te (MRS) sa dual DNA thuas. Sainaithin an seiceamh agus luaigh an l on uaireanta a tharla onn s . Athsheicheamh micreasatail te _______________________ An l on uaireanta a tharla onn s ___________________ [2] (iii) T athsheichimh mhicreasatail te ina gcuidi le hanail s fh ir inseach a dh anamh ar DNA. M nigh cad chuige. ___________________________________________________ _________________________________________________ [1] 6397.06 9 [Tiontaigh an leathanach (b) Rinneadh anail s ar shampla DNA na daoine i dteaghlach irithe le haghaidh polamorfachta i bhfad na mbloganna gearrtha (RFLP). Seasann na banda dorcha san uathradagraf seo th os do na marc ir RFLP. T 15 l na ag an uathradagraf agus baintear s id as cuid mh r acu le haghaidh compar ide. Scr daitheoir Amh in Marcanna Athmharc Image of DNA samples has been removed due to copyright issues. T sampla na foins seo a leanas sna 15 l na. T l na 8, 9, 10, 12, 13 agus 14 na daoine sa teaghlach c anna. Is at i l na 1, 2, 7, 11 agus 15 sraith de bhloghanna DNA dar faid dhifri la a bh onn in s id le haghaidh calabraithe Is rial l na 3 a bhfuil marc ir aithnide RFLP ann (a th irgeann banda ag na su omhanna c anna gach uair) T l na 4, 5 agus 6 dhaoine neamhghaolmhara. (i) M nigh cad chuige a bhfuil marc ir RFLP difri la ag an mhac agus an in on. ___________________________________________________ _________________________________________________ [1] 6397.06 10 [Turn over (ii) Agus an fhaisn is san uathradagraf in s id, sainaithin na seantuismitheoir mar thuismitheoir na mn ch ile (m thartha) n mar thuismitheoir an fhir ch ile (athartha). M nigh an fhianaise le do rogha. Scr daitheoir Amh in Marcanna Athmharc ___________________________________________________ ___________________________________________________ ___________________________________________________ _________________________________________________ [2] (iii) s id an t-uathradagraf le meaitseanna a shainaithint idir aon duine de na daoine neamhghaolmhara (4, 5 agus 6) agus aon duine den teaghlach. ___________________________________________________ _________________________________________________ [1] (iv) Is f idir meaitseanna RFLP a fh il idir daoine neamhghaolmhara. M nigh cad chuige. ___________________________________________________ _________________________________________________ [1] 6397.06 11 [Tiontaigh an leathanach 7 Gl thach d le ag eins m a dh le nn pr it in is bhar don cheist seo. Scr daitheoir Amh in Marcanna Athmharc (a) T an phr it in geilit n i ngl thach. Na heins m a dh le nn pr it in, briseann siad geilit n s os ina aim naig id. Luaigh an cine l imoibrithe a tharla onn le linn d le ite. _____________________________________________________ [1] (b) Anseo th os cuirtear s os ar an ghn thamh a bh in s id le fiosr a dh anamh ar an ifeacht a bh onn ag pH ar ghn omha ocht dh eins m a dh le nn pr it in. 1. 2. 3. 4. 5. 6. 7. Ullmha odh c ig thuaslag n mhaol nacha ag pH 4, 6.4, 7.4, 8 agus 9. Gearradh 10 stiall gl tha amach as bloc gl tha . Bh gach stiall idir 1 mm agus 2 mm ar ti s go neasach. Rinneadh gach ceann de na stiallacha a ch iri ina dronuilleog dar tomhais 10 mm faoi 20 mm agus f gadh an farasbarr gl tha ar leataobh. Cuireadh na stiallacha i miasa Petri leithleacha i ndiaidh gc iri . Cuireadh 10 cm3 de gach ceann de na c ig thuaslag n mhaol nacha le dh cheann de na miasa Petri, sa d igh go raibh pH 4 ag dh cheann de na miasa Petri, go raibh 6.4 ag dh cheann eile srl. Roinneadh na miasa Petri ina dh dtacar, sa d igh go raibh mias amh in ag gach pH i ngach ceann de na tacair. Cuireadh 10 cm3 d eins m A le tacar amh in de na miasa Petri agus cuireadh 10 cm3 d eins m B leis an tacar eile de na miasa Petri. F gadh na miasa Petri uilig ag teocht an tseomra ar feadh 90 n im ad. Tomhaiseadh achar na gl tha a bh f gtha agus t na tortha sa t bla seo th os. pH 4 6.4 7.4 8 9 Achar na gl tha a bh f gtha/mm2 Eins m A Eins m B 0 200 100 190 171 98 190 48 200 0 Scr daitheoir Amh in Marcanna Athmharc (i) Breac na tortha thuas, agus teicn c ghrafach chu in s id agat. ( s id an grafph ip ar ar an ch ad leathanach eile.) [5] (ii) Cuir s os ar na treochta at l irithe sa ghraf. ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ _________________________________________________ [3] 6397.06 12 [Turn over 6397.06 13 [Tiontaigh an leathanach (c) M nigh cad chuige a mb onn ifeacht ag pH ar ghn omha ocht eins me. Scr daitheoir Amh in Marcanna Athmharc _______________________________________________________ _______________________________________________________ _______________________________________________________ _____________________________________________________ [2] (d) Is f idir go mbainfidh fadhbanna go leor le dearadh an turgnaimh seo. Luaigh ceithre fhadhb a d fh adfadh a bheith ann leis an ghn thamh a bh in s id. 1. _____________________________________________________ _______________________________________________________ _______________________________________________________ 2. _____________________________________________________ _______________________________________________________ _______________________________________________________ 3. _____________________________________________________ _______________________________________________________ _______________________________________________________ 4. _____________________________________________________ _______________________________________________________ _______________________________________________________ [4] 6397.06 14 [Turn over Roinn B Scr daitheoir Amh in Marcanna Beidh dh mharc ar a mh ad ag dul do chaighde n na cumars ide scr ofa sa roinn seo. [2] (a) Scr obh cuntas ar strucht r na n-aig ad n icl asach, DNA agus RNA. [8] (b) Cuir s os ar phr iseas mhacasamhl DNA. 8 Athmharc [5] ____________________________________ (a) Scr obh cuntas ar strucht r na n-aig ad n icl asach, DNA agus RNA. _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ 6397.06 15 [Tiontaigh an leathanach _______________________________________________________ Scr daitheoir Amh in Marcanna Athmharc _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ 6397.06 16 [Turn over (b) Cuir s os ar phr iseas mhacasamhl DNA. Scr daitheoir Amh in Marcanna Athmharc _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ 6397.06 17 [Tiontaigh an leathanach _______________________________________________________ Scr daitheoir Amh in Marcanna Athmharc _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ 6397.06 18 [Turn over SEO DEIREADH AN SCR DPH IP IR 6397.06 19 [Turn over 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. 6397.06 Bitheola ocht TGO Ard-Fhotheastas (AS) Aonad Meas naithe AS 1: M il n agus Cealla Ean ir 2011 Grianghraf 1.4 (Le h s id le Ceist 4) A N ICL AS B C N ICL AS D Dr Jeremy Burgess/Science Photo Library AB111 0.5 m 6397.07

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Additional Info : Gce Biology January 2011 Assessment Unit AS 1 Module 1: Molecules and Cells - Revised (Irish Medium)
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