Life Sciences Grade 12 P2 Eastern Cape Mock 2022 Memo

Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE KEREITE YA 12 LOETSE 2022 LIFE SCIENCES P2 TATAISO YA HO TSHWAYA MATSHWAO: 150 Tataiso ena ya ho tshwaya e na le maqephe a 10.

Downloaded from hlayiso.com 2 LIFE SCIENCES P2 (EC/LOETSE 2022) MELAO-METHEO E AMANANG LE HO TSHWAYA LIFE SCIENCES 1. Haeba ho fanwe ka dintlha tse ngata ho feta a dimaraka tse fanweng Emisa ho tshwaya ha matshwao a hodimo a fihletswe ebe o beha mola wa wavy le 'max' ka lehlakoreng le letona la letsoho le letona. 2. Haeba, ho etsa mohlala, ho hlokahala mabaka a mararo mme ho fanwe ka a mahlano Tshwaya tse tharo tsa pele ho sa tsotelehe hore na kaofela kapa tse ding di nepahetse / di fosahetse. 3. Haeba porosese yohle e fanwe, ha ho hlokahala feela karolo ya yona Bala tsohle mme o fane ka dimaraka karolo e amehang. 4. Haeba ho botswa papiso empa ho fanwe ka ditlhaloso. Amohela haeba diphapano/ditshwano di hlakile. 5. Haeba ho etsa theyibole ho hlokahala, empa ho fanwe ka serapana Baithuti ba tla lahlehelwa ke dimaraka ka ho se kenye theyibole. 6. Haeba didayakeramo di fanwe moo ho hlokahalang ditlhaloso. Bahlahlobuwa ba tla lahlehelwa ke dimaraka. 7. Haeba ditjhate tsa phallo di fanwe bakeng sa ditlhaloso.Bahlahlobuwa bat la lahlehelwa ke dimaraka. 8. Haeba tatellano e sithabeditswe mme mahokela a sa utlwahale Moo tatellano le mahokela a nepahetseng, fana ka dimaraka. Ha tatellano le mahokela a fosahetse, o se ke wa fana ka dimaraka.Haeba tatellano le dikgokahano di nepahala hape, qalella ho fana ka dimaraka. 9. Dikgutsufatso tse sa tsejweng Amohela haeba e hlalositswe pele. Haeba e sa hlaloswa, o se ke wa fana ka dimaraka ka kgutsufatso e sa tsejweng, empa fana ka dimaraka karolong e setseng haeba e nepahetse. 10. Dinomoro tse fosahetseng Haeba karabo e dumellana le tatellano e nepahetseng ya dipotso, empa ho fanwe ka nomoro e fosahetseng, se ke wa amoheleha. 11. Haeba puo e sebedisitsweng e fetola moelelo o rerilweng Se ke wa amohela. 12. Diphoso tsa mopeleto Haeba e tsebahala, amohela karabo, ha feela e sa bolele ho hong ho Disaense tsa Bophelo kapa haeba e sa tsamaellane le maemo. 13. Haeba mabitso a tlwaelehileng a fanwe ho theminoloji (mantswe) Amohela, ha feela e amohetswe kopanong ya naha ya dipuisano ka tataiso ya ho tshwaya. 14. Haeba ho botsitswe tlhaku feela, empa ho fanwe ka lebitso feela (le ka tsela e fapaneng) Se ke wa fana ka dimaraka. Difuperweng tsa pampiring ena di se sebediswe ntle ho tumello Phetla

Downloaded from hlayiso.com (EC/LOETSE 2022) LIFE SCIENCES P2 3 15. Haeba diyuniti di sa fanwa ho ditekanyo Baithuti ba tla lahlehelwa ke dimaraka. Tataiso ya ho tshwaya e tla fana ka matshwao bakeng sa di-yuniti ka thoko. 16. Ela hloko kutlwisiso ya karabo, e ka bewang ka tsela e fapaneng 17. Sehlooho Dipapiso tsohle (didayakeramo, dikerafo, di theibole jj) di tlameha ho ba le Sehlooho 18. Ho fetolela puong ya dipuo tsa semmuso (dipolelo le dikhopolo) Lentswe le le leng kapa a mabedi a hlahang puwo efe kapa efe ya semmuso ntle le puwo ya tekolo ya moithuti e sebelisitsweng haholo ho dikarabo tsa hae a lokela ho amohelwa, haeba a nepahetse.Motshwai ya tsebahalang ka puo ya semmuso o le lokela ho botswa. Sena se sebetsa lipuwong tsohle tsa semmuso. Difuperweng tsa pampiring ena di se sebediswe ntle ho tumello Phetla

Downloaded from hlayiso.com 4 LIFE SCIENCES P2 (EC/LOETSE 2022) KAROLO YA A POTSO YA 1 1.1 1.1.1 A  1.1.2 C  1.1.3 B  1.1.4 C  1.1.5 C  1.1.6 A  1.1.7 A  1.1.8 D  1.1.9 A  1.1.10 D  (10 x 2) (20) 1.2 1.2.1 Tjhaisema/ Khaisema / Tjhaisemata/ Khaisemata 1.2.2 Jene  1.2.3 Inthafaese  1.2.4 Mayithokhondriale DNA  1.2.5 DNA phorofaele  1.2.6 Phantjhuweyithete ekhwilibriyamo  1.2.7 Phophuleishene  1.2.8 (Biyilojikhale) evolushene  (8 x 1) (8) 1.3 1.3.1 A feela  1.3.2 B feela  1.3.3 B feela  (3 x 2) (6) 1.4 1.4.1 4 (1) 1.4.2 (a) Mona ase boalbino  (1) (b) nn  (2) (c) Nn  (2) 1.4.3 75 % (2) 1.5 1.5.1 Heliks  (1) 1.5.2 (a) Dioksiraebose  (1) (b) Adenine  (1) (c) Haederojene  bondi (1) 1.5.3 • Dabole seterended  • Ena le thymine  e seng uracil • Para ya dinaetrerojenase baesese  (Efe le efe 2 x 1) (2) (Tshwaya pele tse PEDI feela) 1.5.4 Nyutleyase  Mayithochondirione  (Tshwaya pele tse PEDI feela) (2) KAKARETSO YA KAROLO A: 50 Difuperweng tsa pampiring ena di se sebediswe ntle ho tumello Phetla

Downloaded from hlayiso.com (EC/LOETSE 2022) LIFE SCIENCES P2 5 POTSO YA 2 2.1 2.1.1 GGG - CCA- AGU  (2) 2.1.2 Glycine  - Proline  - Serine  (3) 2.1.3 • Dikhoudone etla tshintsha ho UGG  • Anthikhoudone le ACC  • Tla tlisa Tryptophan  • Ho ena le hoo Glycine  • tatellano ya di-amino asidi e tla fetoha  / protheine e fapaneng e tla theha (Leha e le dife tse 4 x 1) (4) 2.1.4 • tRNA ka ngwe e na le amino asidi e itseng  • ho khoudone e ho mRNA / raebosomo (2) 2.1.5 DNA Repolekheishene Transkripshene Ho sebediswa diseterende tse One DNA strand is used as pedi tsa DNA e le thempoleiti  template  Dinyutleyothaethi tsa DNA tse Free RNA nucleotides join  to lokoleheleng diakopanya  ho DNA template DNA thempoleiti DNA ka o fela e a photholla Karolo ya DNA ya photholla A para le T A para le U Theibole  Tshwaya pele tse PEDI feela (Leha e le dife tse 2 x 2 + 1) (5) 2.2 2.2.1 Palo le ponahalo/mofuta wa dikoromosomo seleng ya ntho e phelang  (2) 2.2.2 8 (1) 2.2.3 • Batshehadi ba XX  • le ba batona ba XY  (2) 2.3 2.3.1 • Ha dintho tse phelang tse pedi tse homozaekase tse nang le ditshobotsi tse fapaneng di koroswa  • Dintho tlohle tse moloko wa F1 di tla bontsha dominente tereit  KAPA • Motho/ dinthotse le heterozaekase bakeng sa tshobotsi e itseng  • di tla ba le tshobotsi e hlahelletseng jwalo ka fenothaepe  (Leha e le efe 1 x 2) (2) Difuperweng tsa pampiring ena di se sebediswe ntle ho tumello Phetla

Downloaded from hlayiso.com 6 LIFE SCIENCES P2 (EC/LOETSE 2022) 2.3.2 P1 Fenothaepe E motshehadi ya x E motona ya mahlo mahlo a makhubedu a masweu  Jenothaepe XR Xr  x Xr Y  Mayosise G/digamete XR , Xr x Xr , Y Fethiliseis hene F1 Jenothaepe XR Xr ; XR Y ; Xr Xr ; Xr Y * Fenothaepe 1 e motshehadi ya mahlo a makhubedu: 1 e motona ya mahlo a makhubedu: 1 e motshehadi ya mahlo a masweu: 1 e motona ya mahlo a masweu * P1 le F1  Mayosise le Fethiliseishene  (Leha e le dife tse 5 + *2 T Tlamehile) KAPA P1 Fenothaephe E motshehadi ya X E motona ya mahlo mahlo a makhubedu amasweu  Jenothaepe XR Xr  X Xr Y  Mayosise G/digamete XR, Xr X Xr, Y Digamete Xr Y Fethiliseis X R X X R r XR Y hene Xr Xr Xr Xr Xr F1 Dijenothaepe tse nepahetsing * Fenothaepe 1 e motshehadi ya mahlo a makhubedu: 1 e motona ya mahlo a makhubedu: 1 e motshehadi ya mahlo a masweu: 1 e motona ya mahlo a masweu * P1 le F1  Mayosise le Fethiliseishene  (Leha e le dife tse 5 + *2 Tlamehile) (7) 2.4 2.4.1 Khontinyuwase  vareashene (1) 2.4.2 Ho nale difenothaepe bo hareng /bolelele (2) 2.4.3 • Bahlahisi ba dimela/batho ba khetha  tshobotsi le • eseng ho khetha tlhaho  sebopeho • Ba khetha ditshobotsi tseo ba di ratang / batho • mme ha e na thuso ho phela  (Leha e le dife tse 2 x 2) (4) 2.4.4 Dominense e sa fellang  (1) 2.4.5 Ho jwalo  • Dipalesa tsa lamunu di na le allele e le nngwe e khubelu / ke heterozaekase • Haeba dimela ka bobedi di feta allele e le nngwe e khubelu  pewu e tla ba khubelu (3) Difuperweng tsa pampiring ena di se sebediswe ntle ho tumello Phetla

Downloaded from hlayiso.com (EC/LOETSE 2022) LIFE SCIENCES P2 7 2.5 2.5.1 Anafeise 1  (1) 2.5.2 Koromosomale mutheishene (1) 2.5.3 • Gamete e nang le khopi e eketsehileng ya koromosomo 21  e tla etsahala • Haeba gamete ena e kopana le gamete e tlwaelehileng / gamete ena le dikoromosomo tse 23 • Zaegote e na le dikoromosomo tse 47 /kopi e eketsehileng ya koromosomo 21 e tla etswa • Sena se tla lebisa ho Down syndrome  (4) 2.5.4 • Ho entswe dikoromosomo tse tharo tse khwele e le nngwe  • Boholo bo nepahetseng ba dikoromosomo tse tharo  (2) 2.5.5 • Sepeme  sele  (1) [50] Difuperweng tsa pampiring ena di se sebediswe ntle ho tumello Phetla

Downloaded from hlayiso.com 8 LIFE SCIENCES P2 (EC/LOETSE 2022) POSTSO YA 3 3.1 3.1.1 Diembiriyo tse ngata a di ile tsa fetisetswa ho bo mma asarogeite / ho ile ha sebediswa sampuli e kholo ya diembiriyo. (1) 3.1.2 Sekhahla sa katleho ya tlelouning  (1) 3.1.3 Kerafo e bontshang sekhahla sa katleho ya peresente(%) diphoofolong tse fapaneng Peresente ya katleho(%) 50 46 40 31 28 30 20 8 10 0 sheep cattle goats pigs Mofuta wa diphofoolo Tataiso bakeng sa tlhahlobo ya kerafo DITEKANYETSO TLHALOSO MARAKA Mofuta o nepahetseng Kerafo ya dibar(bazi/bara/boloko) wa kerafo (T) 1 Sehloho sa kerafo (C) Divariebole tse pedi di kenyeleditswe 1 Dileibole tsa dieksise x- le y-eksise di leibolewe ka ho (L) nepahetsing 1 Sekala sa x- le y- Bopara ba dibazi (bars) bo eksise(S) tshwanang ba x- le - sekala se nepahetsing sa y- eksise 1 Ho polota dintlha(P) 1 ho tse 3 dibara (bazi/bars/ boloko) 1 dipolotiwe ka ho nepahetsing Ka o feela di bara (bazi/ boloko) tse 4 dipolotiwe ka ho nepahetsing 2 (6) 3.1.4 - Hlahisa dintho tse phelang tse nang le ditshobotsi tse lakatsehang  mohlala; bophelo bo botle; ponahalo; e nang le phepo; yilide; pophelo ba sethala(shelefu layefu); etc. - Khoneseveishene ya mefuta e kotsing  - Ho etsa di thishu/ditho tsa mmele bakeng sa ho fetisetswa (transepolanta)  - Repoleisa dithishu tse senyehileng  - Thibela mafu a lefutso  - Ntlafatsa phepelo/boleng ba dijo  Tshwaya pele ele NNGWE feela ( Leha e le efe tse 1 x 1) (1) 3.1.5 Ditsenyehelo tsa tlelouning di holdimo haholo / di bitsa R300 000 Nama e ne e tla tura haholo  Sekhahla sa katleho se tlase / sekhahla sa katleho ke 28% Ho ne ho tla nka nako e telele/matsapa ho hlahisa kgomo ka nngwe.  (4) Difuperweng tsa pampiring ena di se sebediswe ntle ho tumello Phetla

Downloaded from hlayiso.com (EC/LOETSE 2022) LIFE SCIENCES P2 9 3.2 3.2.1 • Ditlou dija jwang ha ngata, lekgapetla, ditholwana, lekgapetla la difate le metso ya diledyumo.  (1) 3.2.2 33 x 91  = 30  tlou e tsehadi (3) 100 3.2.3 • Ho na le phapang e kholo hara palo ya ditlou  • Tse deng di ne le na le manaka, tse deng disenang manaka  • Ha ho ne ho ena le keketseho ya ho phowutsha  • Ditlou tse seng na manaka, phila  • Ha ditlou di na le manaka, di ile tsa bolawa  • Ditlou tse di ele tsa phila, tsa tswala  • tsa fetisa allele ya tshobotsi e ntle ho bana ( ofosepiring)  • Ka hona moloko o latelang o bile le karolo e phahameng ya di individyuwale tse nang manaka  ( Leha e le dife tse 5 x 1) (5) 3.2.4 • Ho tla ba le diledyumo le difate tse ngata  • Le jwang bo fokolang  • Kaha jwale ditlou di ja jwang bo bongata /diledyumo tse nyane/ lekhapetla le fokolang (Leha e le dife tse 2 x 1) (2) 3.3 3.3.1 • E progenathase ha holo  • Keraniamo e leng nyane nyane • E-ba le mehlahare e meholwanyane  • Ho ba le mohlahare o leng wa U haholo  • E ba le di porominente borow rijese (Leha e le dife tse 2 x 1) (2) (Tshwaya pele tse PEDI feela) 3.3.2 • Ba ne ba ja dijo tse tala haholo  • ka hona, ho ba le meno a maholo  ho tabola le ho hahola (2 x 1) (2) 3.3.3 Lesoba botlaseng ba lehata moo mokokotlo o kenang teng  (1) 3.3.4 • Ho Homo sapiens forameni magenamo e boemong bo ka pele  • Ka hona, di leng bayiphedale  • Ho dikorilla forameni magenamo boemong ba morao  • Ka hona, di li khwaderaphele /diseng bayiphedale (4) 3.3.5 • Homo sapiens bale bko bobo holo  • ka hona, bo bohlale ho feta  (2) Difuperweng tsa pampiring ena di se sebediswe ntle ho tumello Phetla

Downloaded from hlayiso.com 10 LIFE SCIENCES P2 (EC/LOETSE 2022) 3.4 • Moholwane wa fosile Ardipithecus difumanehile Afrika FEELA  • Australopithecus fosile difumanehile Afrika FEELA  • Difosile tsa Homo habilis difumanehile Afrika FEELA  • Moholwane wa fosile wa Homo erectus difumanehile in Afrika  • Moholwane wa fosile wa Homo sapiens difumanehile Afrika  • ha difosile tse dinyanyane tsa Homo erectus / Homo sapiens difumanehile ho dikarolo tseding tsa lefatse  (Leha e le efe tse 5 x 1) (5) 3.5 3.5.1 Failojenethiki tere  (1) 3.5.2 5 (1) 3.5.3 1 mya  (1) 3.5.4 Australopithecus africanus  (1) 3.5.5 • • Ha ho na mola o otlolohileng ho tloha moo Homo erectus ho Homo sapiens  hobane • Homo erectus le Homo sapiens ka bobedi di bile teng ho tswa ho moholo-holo a le mong  (2) 3.5.6 Homo neanderthalensis  (1) 3.5.7 Prof. Lee Burger  (1) 3.5.8 Sterkfontein Caves /Cradle of Humankind Taung  (2) [50] KAKARETSO YA KAROLO B: 100 KAKARETSO E FELLETSENG: 150 Difuperweng tsa pampiring ena di se sebediswe ntle ho tumello Phetla