# Life Sciences Grade 12 P1 Eastern Cape Mock 2021 Memo > Grade 12 Life Sciences Paper 1 memorandum from the Eastern Cape Mock Exam 2021 (isiXhosa), 11 pages. Read online or download the free PDF. - Page: https://www.hlayiso.com/library/life-sciences-p1-memo-gr12-sept2021-isixhosa/00fef6a6-a37f-41c7-be45-09087d05767d - Updated: 2026-09-27 - Subject: Life Sciences - Grade: Grade 12 - Language: Isixhosa - Document type: Memorandum - Year: 2021 - Exam period: Eastern Cape Mock Exam - Paper: 1 - Curriculum: CAPS - Pages: 11 Breadcrumbs: [Home](https://www.hlayiso.com/) › [Library](https://www.hlayiso.com/library) › [Grade 12](https://www.hlayiso.com/library/grade-12) › [Life Sciences](https://www.hlayiso.com/library/grade-12/life-sciences) › [Life Sciences Grade 12 P1 Eastern Cape Mock 2021 Memo](https://www.hlayiso.com/library/life-sciences-p1-memo-gr12-sept2021-isixhosa/00fef6a6-a37f-41c7-be45-09087d05767d) ## About this document Life Sciences · Grade 12 · Eastern Cape Mock Exam · 2021 · isixhosa. Memorandum, 11 pages. Read online or download the PDF. Read it free online on the page above; download the PDF from there. ## Document text Text extracted from the PDF. Layout, diagrams and tables may not survive extraction. ### Page 1 Downloaded from hlayiso.com NATIONAL SENIOR CERTIFICATE GRADE 12 SEPTEMBA 2021 LIFE SCIENCES P1 ISIKHOKELO SOKUMAKISHA AMANQAKU: 150 Esi sikhokelo sokumakisha sinamaphepha ayi 11. ### Page 2 Downloaded from hlayiso.com 2 LIFE SCIENCES P1 (EC/SEPTEMBA 2021) IMIGOMO YOKUMAKISHA I LIFE SCIENCES 1. Xa kunikwe iimpendulo ezingaphezu kwamanqaku anikiweyo Yeka ukumakisha wakufumana amanqaku alindelekileyo ubonise ngomgca ogoso ubhale igama ‘aphelele’ kwisiphelo sephepha esingasekunene. 2. Xa, umzekelo, kulindeleke izizathu ezithathu ze kunikwe ezihlanu Makisha ezokuqala ezintathu nokuba azamkelekanga. 3. Xa kunikwe inkqubo yonke ndaweni yesiqingatha sayo Yifunde yonke ze ukredithe iindawo ezamkelekileyo. 4. Xa kubuzwe ufaniso, kodwa kunikwe inkcazelo Yamkele ukuba umahluko / ukufana kucacisiwe. 5. Xa kufuneka itheybhile, kodwa kunikwe umhlathi Abafundi baya kuphulukana namankqaku ngokungazobi itheybhile. 6. Ukuba iidayagram ezihamba neziqwengana zentetho zinikwe endaweni yenkcaza Abafundi baya kuphulukana namanqaku. 7. Ukuba iiflowu tshati zinikwe endaweni yenkcaza Abafundi baya kuphulukana namanqaku. 8. Ukuba ulandelelwano olufanelekileyo alukho nonxulumano alunangqiqo Kuloo ndawo lubonakala lukhona, kreditha. Apho lungekhoyo ngokuya uqhubeka, ungakredithi. Xa luphinde lwakhona, kreditha. 9. Iiabriveyshin ezingamkelekanga Yamkele ukuba iqalwe yachazwa kwimpendulo. Ukuba ayichazwanga, ungayikredithi iabriveyshin engamkelekanga, kodwa impendulo eyenye yikredithe. 10. Ukunambarisha okungamkelekanga Ukuba impendulo isendaweni elindelekileyo ngokolandelelwano, kodwa ukunambarisha kuphazanyiwe, yamkelekile. 11. Xa ulwimi olusetyenzisiweyo lunika intsingiselo eyenye Ungayamkeli. 12. Upelo oluneempazamo Ukuba lunengqiqo, lwamkele kodwa lungabi nanto yimbi luyithethayo kwiLife Sciences okanye luphume ecaleni. 13. Xa amagama esiqhelo anikwe kwiteminoloji Wamkele xa unashinal ewamkele esakuhlalutya isikhokelo sokumakisha. 14. Xa kubuzwe unobumba ze kunikwe igama (nevays vesa) Ungakredithi. Ukufotokopa eli phepha akuvumelekanga Tyhila iphepha ### Page 3 Downloaded from hlayiso.com (EC/SEPTEMBA 2021) LIFE SCIENCES P1 3 15. Xa iiyunit zinganikwanga ezintweni ezimetiweyo Abafundi baya kuphulukana namnqaku. Isikhokelo sokumakisha siyakubanamanqaku eeyunits qha 16. Uyilumkele intsingiselo eyamkelekileyo yempendulo, enokubhalwa ngendlela enomahluko. 17. Isihloko Yonke imizobo (dayagram, graf, theybhile, njalo njalo) mazibenesihloko. 18. Ukusebenziza iilwimi ezahlukeneyo ezamkelekileyo (izigaba zentetho) Igama elinye okanye amabini avela ngolunye ulwimi ingeyilulo olo kubuzwe ngalo, wakredithe ukuba afanelekile. Makucelwe imaka elwaziyo ulwimi olusetyenziswe ngumfundi imakishe. Le nto izichaphazela zonke iilwimi ezamkelekileyo. Ukufotokopa eli phepha akuvumelekanga Tyhila iphepha ### Page 4 Downloaded from hlayiso.com 4 LIFE SCIENCES P1 (EC/SEPTEMBA 2021) ICANDELO A UMBUZO 1 1.1 1.1.1 D  1.1.2 A  1.1.3 B  1.1.4 A  1.1.5 A  1.1.6 C  1.1.7 C  1.1.8 A  1.1.9 C  1.1.10 A  (10 x 2) (20) 1.2 1.2.1 Meninjis  1.2.2 Periferal nevas sistim 1.2.3 Dendrayt  1.2.4 Jiyotropism  1.2.5 Rawund windo  1.2.6 Thayiroksin / adrenalin 1.2.7 Adrenal glend  1.2.8 Vajayna  (8 x 1) (8) 1.3 1.3.1 B only  1.3.2 Zombi A no B  1.3.3 B qha  (3 x 2) (6) 1.4 1.4.1 D  C  A  (2) 1.4.2 Ukukhusela / ukunciphisa ingozi emzimbeni. (1) 1.4.3 - Isihlunu  - Iglend  (Nayiphi eyi 1 x 1) (1) (Makisha eyokuqala ibeNYE qha) 1.4.4 (a) C  – Intanyuron /konekta nyuron (2) (b) B  – Ventral rhuti  (2) (c) A  – Moto nyuron  (2) Ukufotokopa eli phepha akuvumelekanga Tyhila iphepha ### Page 5 Downloaded from hlayiso.com (EC/SEPTEMBA 2021) LIFE SCIENCES P1 5 1.5 1.5.1 (a) Thayroid gland  (1) (b) Testis  (1) 1.5.2 (a) Pishwitary glend / Hayphofisis (1) (b) TSH  / Thayroid stimulating homon (1) (c) Adrenal glend  (1) 1.5.3 A (1) EWONKE AMANQAKU ECANDELO A: 50 Ukufotokopa eli phepha akuvumelekanga Tyhila iphepha ### Page 6 Downloaded from hlayiso.com 6 LIFE SCIENCES P1 (EC/SEPTEMBA 2021) ICANDELO B UMBUZO 2 2.1 2.1.1 Extenal  fetilizeyshin (1) 2.1.2 -Amaqanda ayafetilayzwa kwistraktsha esingaphandle samadoda (brud pawush) / amaqanda akafetilayzwa ngaphakathi kwisini sokuzala sezingabafazi. (1) 2.1.3 - Amaqanda amaninzi agalelwa kwisingxobo (pouch) ukwandisa amathuba efetilizeyshin  - Ifetilizeyshi yenzeka ngaphakathi esingxotyeni  ukwandisa amathuba efetilizeyshin - Ukudevelopha kweelava/amantshontsho kwenzeka esingxotyeningako oko zikhuselekile kwiiprideyta / nakwiimo zezulu (Naziphi eziyi 2 x 2) (4) 2.1.4 - Ukudevelopha kwamantshontsho kwenzeka kwisingxobo sezingamadoda kanti kwivivipari kwenzeka ngaphakathi esibelekweni - Amantshontsho afumana ukutya kwiyok yeqanda kwiiseahorse Kwivivipari amantshontsho afumana ukutya emgcantsini (placenta)  - Amanzi afumaneka esingxotyeni ancedisa kwiexkrishin negesiyas extsheynji  Kwivivipari umgcantsi wenza iexkrishin negesiyas extsheynji (Inqaku lokuqala libeliNYE qha) (Nayiphi eliyi 1 x 2) (2) 2.2 2.2.1 Ixesha lokudevelopha kwentshontsho  / fitus phakathi kokumitha nokuzala. (2) 2.2.2 Iintsuku eziyi22  (1) 2.2.3 Umlinganiselo weprojesteron  (1) 2.2.4 Makufane: - Ispisis seempuku  Ikonsentayshin yeprojesteron ekutofwe ngayo  - Udidi /ibrand yeprojesteron  - Inqanaba lokuxakeka kweempuku  - Iimeko zempilo zeempuku  - Udidi lokutya  (Naziphi eziyi 2 x 1) (2) (Makisha awokuqala AMABINI qha) 2.2.5 - Iovari ikhupha iprojesteron  ngako oko, - Ukususwa kweovari kunika umphandi ithuba lokuba akwazi ukutofa ngemilinganiselo eyahlukeneyo yeprojesteron  - ukufanisa igalelo layo ekumitheni  (3) Ukufotokopa eli phepha akuvumelekanga Tyhila iphepha ### Page 7 Downloaded from hlayiso.com (EC/SEPTEMBA 2021) LIFE SCIENCES P1 7 2.2.6 - Inani leempuku ezimithe zagqiba lahlulahlulwe ngenani leempuku kwiqela ngalinye  - Iziphumumo zaphindaphindwa ngo100  (2) 2.2.7 - Isebenza njenge kontrol  - ukuze ikwazi ukufaniswa namanye amaqela - ukuqonda ukuba iprojesteron inegalelo na ekumitheni ngokupheleleyo  (Naziphi eziyi 2 x 1) (2) 2.3 2.3.1 (a) A – Suspensori ligament  (1) (b) B – Ayris  (1) 2.3.2 Ikhusela imehlo  (1) 2.3.3 - Iciliyari mascle iyoluleka  - Iisaspensori ligament zitsaleke  - Itenshin kwilens yonyuke  - Ilens ibeflet  / ibeconvex kancinci - Amandla okureflekta elens ayehla  / imitha yelanga igotywa kancinci - imitha yelanga ibetha kwiretina  - Kuphume umfanekiso ocacileyo (Naziphi eziyi 4 x 1) (4) 2.3.4 - Akusayi kubakho impuls ihambayo  - isiya kwicerebram  - ikhokelele ekuphulukaneni nokubona  (3) 2.4 2.4.1 Yindlela yokugcina imeko yangaphakathi ingatshintshi  (2) 2.4.2 - Iirisepta (zengqele) / themorisepta eziseluswini ziyachukumiseka  - ukukhupha iimpals eya kwihaypothalamus  - ihaypothalamus ithumela impals - emithanjeni yegazi eziseluswini - nakwiigland zombilo  - Imithambo yegazi yolusu iyakonstrikta  (vasokonstrikshin) - Libalincinci igazi eliya eluswini  - Ukuze bubebuncinci ubushushu obuphuma emzimbeni - Libalincinci kwakhona igazi eliya kwiigland zombilo - Ubencinci ubilo oprodyuswayo  - Ukuze bubebuncinc ubushushu obuphuma ngeevaporeyshin  yombilo - Ubushushu bangaphakathi bomzimba buyanyuka bugcinwe (Naziphi eziyi 7 x 1) (7) 2.4.3 - Iienzaym azisebenzi  - nto leyo yenza ziyeke iimetabolik prowuses / zihle - ikhokelele ekuyekeni kwamalungu omzimba / kungabikho respireyshin / kungaphumi eneji (3) Ukufotokopa eli phepha akuvumelekanga Tyhila iphepha ### Page 8 Downloaded from hlayiso.com 8 LIFE SCIENCES P1 (EC/SEPTEMBA 2021) 2.5 2.5.1. Prosteyt gland  (1) 2.5.2 Ihambisa isimen nomchamo  (1) 2.5.3 - Iitestis zifuna 2 ºC yobushushu obungaphantsi kobo bomzimba  - Ukuprodyusa isperms eziqhelekileyo neziphilileyo  - Ngako oko, ngeemini ezishushu, iskrotam siyoluleka ukulungiselela ukuba iitestis zibekude nomzimba  - ukulungiselela ukuba zingasondeli emzimbeni  - ukugcina ubushushu buphantsi  (Naziphi eziyi 3 x 1) (3) 2.5.4 - Inye qha ivas diferens evalwe ngoqhaqho  - Ngako oko, isimen enesperm yaahamba ngelinye icala  / ispems zakwazi ukufika kwiitestis (2) [50] Ukufotokopa eli phepha akuvumelekanga Tyhila iphepha ### Page 9 Downloaded from hlayiso.com (EC/SEPTEMBA 2021) LIFE SCIENCES P1 9 QUESTION 3 3.1 3.1.1 Oditari nev  (1) 3.1.2 Yenza ipresha elinganayo macala omabini etimpanik membreyn  (1) 3.1.3 (a) Pina  (1) (b) Ogan of koti  / kokliya (1) 3.1.4 (a) - Iiosikle azinako ukuvaybreyta  - ngako oko, iivaybreyshin azinakugqithela kwioval windo  - nto leyo ithintela ubukho beepresha weyv kwindlebe engaphakathi / - Iogan of koti ayizuchukumiseka ukuba ikhupke iimpals / akukho impals izothunyelwa engqondweni ukuze kuviwe (Naziphi eziyi 3 x 1) (3) (b) - Indawo uD / timpanik membreyn ayizukwazi ukwenza iivaybreyshin  - Akukho vaybreyshin ziyakuthunyelwa kwiiosikle  / ioval windo - Ngako oko, akukho presha weyv ziyakwenziwa kwindlebe engaphakathi  - Iogan of Koti ayizuchukumiseka ukuba ikhuphe iimpals  / akukho impals izothunyelwa engqondweni ukuze kuviwe. (Naziphi eziyi 3 x 1) (3) 3.1.5 - iikristaye ziyachukumiseka  - ukuze zitshintshe istimulas sibeyi impals  - ehamba ngeoditari nev  - isiya kwicerebelam apho itolikwa khona - icerebelam ithumela iimpals kwiiskeletal maskli ukubuyisela ibalansi (Naziphi eziyi 4 x 1) (4) 3.2 3.2.1 (a) - Ukususa iiokzin eziprodyuswa kwiapikal bad (1) (b) - Tukunika iiokzin thuba lokungena kwiaga blokho  (1) 3.2.2 - Iiokzin zizakuya kwicala lasekunene  lestem - Iyakubaphezulu ikonsentreyshin yeeokzin kwicala lasekunene  lestem - Ikonsentreyshin ephezulu yeeokzin iyakukhokelela sel elongeyshin  /ukukhula kwicala lasekunene - Oku kukhula ngokungalingani  - kuyakwenza ukuba istem sigobele kwicala lasekhohlo ngokugoba kwencam yestem igobela ngasekhohlo * *1 Inyanzelekile + Naziphi eziyi 3 (4) Ukufotokopa eli phepha akuvumelekanga Tyhila iphepha ### Page 10 Downloaded from hlayiso.com 10 LIFE SCIENCES P1 (EC/SEPTEMBA 2021) 3.2.3 - iiokzin ziyakusuka kwicala elikhanyayo  (ekhohlo) - ziye kwcala elimnyama  (ekunene) - Ikonsentreyshin ephezulu yeeokzin kwicala elimnyama iyakukhokelela kwisel elongeyshin / ukukhula okugqithisileyo kunecala elikhanyayo - Oku kukhula ngokungalingani  - Kwenza istem sigobele ekhohlo sisiya kwicala elikhanyayo * (ekhohlo) *1 Inyanzelekile + Naziphi eziyi 3 (4) 3.2.4 - Kuzakudevelopha amasebe asemacaleni amaninzi  Ukunyusa isivuno  - Isiqhamo esifumaneka emasebeni siyakwenza kubelula ukuvuna  (Nayiphi eyi 1 x 2) (2) (Makisha eyokuqala ibeNYE qha) 3.3 3.3.1 (a) Insulin  (1) (b) Penkriyas  (1) 3.3.2 Negetive fid-bakh  mekanism / homiyostaysis (1) 3.3.3 Ngexesha lokuzila ukutya akutyiwa ngako oko - Iqondo leswekile yegazi libangaphantsi kwelifanelekileyo  - Ipenkriyas ayisakuchukunyiswa ukuba ikhuphe iinsulin /iyakukhupha encinci / iqondo leinsulin liyakwehla. (2) 3.3.4 - Xa iqondo leswekile yegazi lihlile langaphantsi kwelo lesiqhelo  - Ipenkriyas iyachukunyiswa ukukhupha iglukagon  / homon B - Ekhokelela ekutshintshweni kweglaykojin ibeyiswekile yegazi  - Nto leyo inyusa iswekile yegazi  ibuyele kweyesiqhelo. (4) 3.4.1 (a) Amnoytic fluwid  (1) (b) koriyon  (1) 3.4.2 Umbilikal veyn  (1) 3.4.3 - Idibanisa intshontsho nomama  - Ivumela ukuhamba kokutya okunyibikileyo okusuka kumama kusiya entshontshweni  - Ivumela ukuhamba kweoksijin esuka kumama isiya entshontshweni  - Ivumela ukuhamba kwekabon diyokzayd esuka entshontshweni - Isiya kumama  - Ivumela ukuhamba kwenitrojinas exkritari weysti esuka entshontshweni isiya kumama  - Ikhupha iprojesteron  egcina ikhusele umitho (Makisha ezokuqala eziMBINI qha) (Nayiphi eyi 2 x 1) (2) Ukufotokopa eli phepha akuvumelekanga Tyhila iphepha ### Page 11 Downloaded from hlayiso.com (EC/SEPTEMBA 2021) LIFE SCIENCES P1 11 3.4.4 - Izaygoti idivayida ngemitosis  - Kuphume (eluqilima) ibhola yeesel  - ebizwa ngemorula  - nayo ethi idivayde kuphume ibhola yeesel evulekileyo  - ebizwa ngeblastosist / blastula - The blastosist/blastula iyaimplanta kwiendometriyum  / Le ibizwa ngokuba yiimplanteyshin - Ileya engaphandle yentshontsho ibayikoriyonorion  - Ze ileya engaphakathi ibeyiamniyon  - Eneamnoytik fluwid ngaphakathi  - Emva kweimplanteyshin ikoriyon idevelopha izinto ezininzi ezingathi yiminwe  - ezibizwa ngekoriyonik vili  - Iendometriyam nekoriyonikchorionic vlli zenza iplasenta  (Naziphi eziyi 8 x 1) (8) 3.4.5 - Ikeviti evulekileyo  Ukwamkela intshontsho elikhulayo  - Inezihlunu  ezikwaziyo ukushwabana ziphinde zoluleke ukuze umntwana azalwe  - Siyanwebeka  Sikwazi ukuvuleka ukulungiselels intshontsho elidevelophayo  (Naziphi eziyi 2 x 1) (2) [50] EWONKE AMANQAKU ECANDELO B: 100 AMANQAKU EWONKE: 150 Ukufotokopa eli phepha akuvumelekanga Tyhila iphepha ## Related documents - [LIFE SCIENCES P1 GR12 QP SEPT2023 isiXhosa](https://www.hlayiso.com/library/life-sciences-p1-gr12-qp-sept2023-isixhosa/4bfbd428-d580-44bb-9e04-f4e5ad0bda53) — Life Sciences · QP · 2023 · isiXhosa - [LIFE SCIENCES P1 QP SEPT 2021 Xhosa D](https://www.hlayiso.com/library/life-sciences-p1-qp-sept-2021-xhosa-d/bf73c123-831d-499a-9ecd-62ac37eff2bf) — Life Sciences · QP · 2021 - [Life Sciences P1 Nov 2021 MG Afr](https://www.hlayiso.com/library/life-sciences-p1-nov-2021-mg-afr/49c0ade5-a6de-497f-beba-2a2361658df7) — Life Sciences · Memo · 2021 · Afr - [LIFE SC P1 GR12 S16 MEMO ENG](https://www.hlayiso.com/library/life-sc-p1-gr12-s16-memo-eng/4630878b-8cd1-4138-9bfb-f01031ac7116) — Life Sciences · Memo · 2016 · Eng - [LIFE SCIENCES P1 QP GR12 SEPT2024 ISIXHOSA](https://www.hlayiso.com/library/life-sciences-p1-qp-gr12-sept2024-isixhosa/bb797fac-0132-4eef-bdb5-8f799aaa6a5d) — Life Sciences · QP · 2024 · isiXhosa - [Life Sciences P2 Sept2021 Prep Errata](https://www.hlayiso.com/library/life-sciences-p2-sept2021-prep-errata/489c9171-931e-4a91-a798-55846a1144ba) — Life Sciences · Errata · 2021 ## More from Grade 12 Life Sciences - [Life Sciences Grade 12 NSC QP March 2025 KZN](https://www.hlayiso.com/library/life-sciences-grade-12-nsc-qp-march-2025-kzn/b1598f8e-58e0-4c09-b513-b9f61ae73c47) — QP · 2025 - [Life Sciences Grade 12 NSC P2 MEMO September 2025 Mpumalanga](https://www.hlayiso.com/library/life-sciences-grade-12-nsc-p2-memo-september-2025-mpumalanga/17b4cc42-641c-4d7d-9c53-6bac113ce83c) — Memo · 2025 - [Life Sciences Grade 12 NSC P1 QP September 2025 Mpumalanga](https://www.hlayiso.com/library/life-sciences-grade-12-nsc-p1-qp-september-2025-mpumalanga/be917127-6071-4190-b900-3c475d5bfdd4) — QP · 2025 - [Life Sciences Grade 12 NSC P1 QP September 2025 North West](https://www.hlayiso.com/library/life-sciences-grade-12-nsc-p1-qp-september-2025-north-west/9dc29799-a675-40eb-9573-df7341b3572f) — QP · 2025 - [Life Sciences MEMO May June 2024 Free State](https://www.hlayiso.com/library/life-sciences-memo-may-june-2024-free-state/f64294e8-cf5e-4480-84f9-3737ae031041) — Memo · 2024 - [Limpopo Life Sciences Grade 12 SEPT 2022 P2 and Memo](https://www.hlayiso.com/library/limpopo-life-sciences-grade-12-sept-2022-p2-and-memo/a14d1ac1-f20f-44b6-9531-44480fcf1d4c) — Memo · 2022 ## Collection - [Grade 12 past papers](https://www.hlayiso.com/grade-12/past-papers) --- Hlayiso: free CAPS and IEB past papers, memos, notes and study guides for South African learners. 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