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GCE JAN 2008 : (AS 3) Practical Processes (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 3A ag meas n Mod l 3A: Pr isis Fheidhmeacha [ASB31] D C ADAOIN 23 EAN IR, 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 c ig cheist. T Grianghraf 3.2 ar f il duit le h s id le Ceist 2 sa ph ip ar seo. N scr obh do fhreagra ar an ghrianghraf seo. Don Scr daitheaoir amh in Uimhir Ceiste EOLAS D IARRTH IR Is 50 an marc ioml n don ph ip ar seo. Meas n far caighde n na cumars ide scr ofa i gceisteanna 1(b), agus 5(b), (a chuirtear in i l sa ph ip ar le r ilt n,*), agus a bhfuil suas le 2 mharc ag dul d . 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. 1 2 3 4 5 CSC Marc Ioml n ASB3AW8 3633.03 Marcanna 1 F sann an fearb n (Ranunculus repens) i dtoim agus t s coitianta i m in ir fhliucha. Scr daitheoir Amh in Marcanna Athmharc (a) Le himscr d dh anamh ar dh ileadh fearb n i m in ar, cuireadh cuadraithe ag su mh ar leith. Taispe nann an l ar id th os na limist ir i gcuadra amh in ina raibh fearb in ag f s. Bh sreanga in s id leis an chuadra a roinnt ina 25 cearn g n ba l . su omh of position na bhfearb n creeping buttercup (i) Faigh an c atad n de chumhdach fearb n sa chuadra . M nigh an d igh a bhfaigheann t do fhreagra. ______________________________________________________ ______________________________________________________ ____________________________________________________ [2] (ii) Is minic a s idtear an c atad n de chumhdach planda seachas a mhinic ocht le fl irse planda a fh il. M nigh c n f th. ______________________________________________________ ____________________________________________________ [1] ASB3AW8 3633.03 2 [Turn over *(b) Bh an m in ar ina raibh an t-imscr d ar bun ag dul le f na r igi n d ithir thirim go r igi n ab sle a raibh ithir fhliuch ann. M nigh an d igh a n-ini chf c acu i r igi n fliuch n i r igi n tirim an mh in ir is m a raibh fearb in ag f s. Scr daitheoir Amh in Marcanna Athmharc __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ _______________________________________________________ [4] ASB3AW8 3633.03 3 [Tiontaigh an leathanach 2 Is at in Grianghraf 3.2 n f taimhicreagraf de chuid de thrasghearradh tr ghas lus na gr ine (Helianthus). Scr daitheoir Amh in Marcanna Athmharc Sa sp s th os, tarraing blocl ar id a thaispe nfaidh na cisil f och in sa ghas mar at l iri sa ghrianghraf. Lip adaigh an l ar id le c ig strucht r ar a laghad a shainaithint. [9] ASB3AW8 3633.03 4 [Turn over 3 Forbra odh an haemaic team adar (a thaispe ntar th os) ar dt s mar ghaireas sampl la le fuilchealla a chomhaireamh, ach is f idir a s id chomh maith le cealla ar bith i me n leachtach a chomhaireamh. Is f idir le dalta , mar shampla, an haemaic team adar a s id le l on na gceall giosta i bpobal a chomhaireamh agus monat ireacht a dh anamh ar an d igh a mb onn s ag athr le himeacht aimsire. Scr daitheoir Amh in Marcanna Athmharc Dromchla sleamhn in Cearn g cine l-B (0.04 mm2) Cearn g cine l-C (0.0025 mm2) Cuid l rnach an tsleamhn in Cearn g cine l-A (1 mm2) Trasghearradh de shleamhn n a thaispe nann cl idghloine ina ionad ciumhais r imse radhairc ( sealchumhacht) Foinse: Practical Biology for Advanced Level, M. Roberts, T. King, M. Reiss, Nelson, 1994 Scr daitheoir Amh in (a) Agus comhairimh fola nglacadh, caithfear tuaslag n de shalann iseatonach (tuaslag n sail ne) seachas uisce a s id leis na sampla fola a chaol . N l s chomh t bhachtach c anna go n- s idf me n iseatonach nuair a bh tear ag obair le cealla giosta a bhfuil cillbhalla acu. Cad chuige, dar leat? Marcanna Athmharc __________________________________________________________ _______________________________________________________ [1] (b) Cuir s os ar an d igh a bhfaighfe d ileadh r idh de chealla giosta trasna ar an eangach comhairimh le go mbeife balta iad a chomhaireamh. __________________________________________________________ __________________________________________________________ __________________________________________________________ _______________________________________________________ [2] ASB3AW8 3633.03 5 [Turn over [Tiontaigh an leathanach [Tiontaigh an leathanach (c) Is f idir go mbeidh barra ocht cealla giosta sna pobail ghiosta n os sine, rud a fh gann nach dtig leat na l nte eanga a fheice il go soil ir ar an sleamhn n. Cuir s os ar an ch ire il a dh anf ar phobail mar seo le go dtiocfadh leat iad a chomhaireamh. Scr daitheoir Scr daitheoir Amh in Marcanna Athmharc _________________________________________________________ _______________________________________________________[1] L ir onn an l ar id th os ceithre chearn g cine l-C shleamh n haemaic team adair. Is 0.1 mm an fad idir dromchla na gcearn g cine l-C seo agus an cl idghloine os a gcionn. X X (d) (i) Cuir s os ar an d igh a roghn f na cearn ga cine l-C at le comhaireamh. ______________________________________________________ ____________________________________________________ [1] (ii) Agus cealla gcomhaireamh, m nigh go hachomair an d igh a bpl itear le cealla at ina lu ar na l nte eanga n at i dteagmh il leo. ______________________________________________________ ____________________________________________________ [1] (iii) Comhairigh l on na gceall giosta sa chearn g cine l-C at marc ilte X. ____________________________________________________ [1] ASB3AW8 ASB3AW8 3633.03 6 [Turn over (iv) s id do fhreagra ar chuid (iii) le l on na gceall giosta in aghaidh mm3 a r omh. (Taispe in do chuid oibre). Scr daitheoir Amh in Marcanna Athmharc Freagra _____________ [2] (e) Cuir s os ar dh igh amh in a bhfaighfe meastach n n os iontaofa ar do phobal giosta. __________________________________________________________ _______________________________________________________ [1] ASB3AW8 3633.03 7 [Tiontaigh an leathanach 4 Is moilisc coitianta iad giorad in (Littorina littorea) a bh onn ar chladaigh charraigeacha. Le lag tr t ann na giorad in isteach ina sliog in le nach dtriom idh siad. Agus faoi uisce na farraige tiocfaidh cuid den ghiorad n amach as an sliog n agus bogfaidh s thart bheath f in ar alga . T an poit inseal uisce ( ) c anna ag sreabh in choirp an ainmh is at ag uisce na farraige. Scr daitheoir Amh in Marcanna Athmharc Le turgnamh a dh anamh ar fhreagairt giorad n ar shu mh dhifri la osm iseacha, cuireadh gr pa de 30 giorad n i gcaol ch in ags la d uisce na farraige. I ngach c s taifeadadh an l on de na giorad in a bh imithe ar ais sna sliog in i ndiaidh 10 n im ad. Taispe ntar na tortha sa t bla th os. C atad n d uisce na farraige sa tuaslag n tumtha/% 100 [uisce na farraige] 90 80 70 65 60 50 40 L on na ngiorad n a bh imithe ar ais sna sliog in 1 0 0 4 8 13 23 30 (a) s id teicn c ghrafach chu leis na tortha thuas a bhreacadh. ( s id an grafph ip ar thall.) [6] (b) Agus t ag tagairt do phoit inseal uisce, m nigh cad a tharla onn go hosm iseach nuair a chuirtear giorad in in uisce caolaithe na farraige. __________________________________________________________ __________________________________________________________ _______________________________________________________ [2] (c) Cuir s os ar an treocht a l ir tear sa ghraf. __________________________________________________________ __________________________________________________________ _______________________________________________________ [2] (d) Cad chuige, dar leat, a raibh na giorad in imithe ar ais sna sliog in nuair a bh siad tumtha in 40% d uisce na farraige? __________________________________________________________ __________________________________________________________ _______________________________________________________ [2] ASB3AW8 3633.03 8 [Turn over ASB3AW8 3633.03 9 [Tiontaigh an leathanach 5 Is an eins m catal is a chatala onn briseadh s os s rocsa de hidrigine go huisce agus ocsaigin. T an eins m seo i l thair i ngach f och n beo, mar is foth irge thocsaineach de mheitibileacht s rocsa d hidrigine. Is f idir gn omh catal ise a aimsi sa tsaotharlann tr mh id an ch ir a dh antar th irgeadh ocsaigine, nuair a bh onn s ag imoibri le s rocsa d hidrigine. Is f idir seo a thomhas i sorc ir tomhais mar a thaispe ntar th os. Scr daitheoir Amh in Marcanna Athmharc c r (boilgeoga ocsaigine) foam (oxygen bubbles) mixture of catalase and measc n de chatal is agus s rocsa d hidrigine hydrogen peroxide Caithfidh t plean a chumadh le himscr d a dh anamh ar an ifeacht at ag ti chan s rocsa de hidrigine ar ghn omh catal ise i bhf och n ae Ar f il duit t ae tuaslag n caighde nach de sh rocsa d hidrigine uisce driogtha sorc ir tomhais agus gn thfhearas saotharlainne (a) Luaigh ASB3AW8 an athr g neamhsple ch __________________________________ an athr g sple ch ___________________________________ [2] 3633.03 10 [Turn over *(b) Cuir s os ar do phlean leis an imscr d a dh anamh. Scr daitheoir Amh in Marcanna Athmharc __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ _______________________________________________________ [4] (c) Luaigh dh laige a d fh adfadh a bheith i do mhodh oibre. 1. _______________________________________________________ __________________________________________________________ 2. _______________________________________________________ _______________________________________________________ [2] (d) Agus na haiseanna th os in s id agat, taispe in cad mar a l ireof na tortha go grafach. Lip adaigh na haiseanna go cu agus, bunaithe ar do thuiscint ar ghn omh eins me, tarraing graf de na tortha a mbeife ag s il leo. [2] Caighde n na cumars ide scr ofa ASB3AW8 3633.03 11 [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. S SB3AW8302-029-1 A 3/07 3633 12 [Turn over Bitheola ocht TGO Ard-Fhotheastas (AS) Aonad Meas naithe AS 3A Mod l 3A: Pr isis Fheidhmeacha Ean ir 2008 Grianghraf 3.2 (Le h s id le Ceist 2) Foinse: Chuck Brown/Science Photo Library ASB3AW8 3633.04

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Additional Info : Gce Biology January 2008 Assessment Unit AS 3 Module 3A: Practical Processes (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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