Life Sciences Memo 2 (Afrikaans)

November 2019 — Grade 12 / Matric — Life Sciences

Memo 2019 Grade 12 Afrikaans Life Sciences Hub →

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🎯 150 marks 📄 11 pages 📝 34 items found 📚 1 topics

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1.1.9(9 x 2\ (18\

1.2.8Ura Gepunte /gepunkte ewewig Uitsterwing /Uitsterf itwissing Australopithecus Riboso

1.3.3Beide Geeneen Slegs (3 x 2\ (6\

1.4.1(a\ (b\ (c\ entrio /sentrosoom Chromoso Sel membra /plasmamembraan/plasmalemma

1.4.2(a\ (b\ (c\ Meta ase Pro ase Ana ase

1.4.3(a\ (b\ (c\ /3 (1\ (1\ (1\ (12\

1.5.1(1\

1.5.2Normal blare normale vorm Een saad per peul (2\

1.5.3(a\ (b\ PpLl PpLl x PpLl /PpLl ; PpLl (2\ (1\ (6\

2.1.1(a\ (b\ oordrag A/RNS Antik odon (1\ (1\

2.1.2(a\ (b\ (in die regte orde\ TGG (in die regte orde\ (2\ (2\ (6\

2.2Die dubbele h eliks DNA/DNS draai af rits los /swak waterstofbindings breek om twee aparte stringe te vorm Een string dien as templaat om mRNA/bRNS te vorm

2.3.1odominan sie Die fenotipes/allele van die ouers is ewe dominant oranje geel\ word beide uitgedruk in die fenotipe van die nageslag

2.3.2Swart (1\

2.3.3In kruising 1 is beide ouers geel geeneen van die ouers swart maar swart verskyn in die fenotipe van die nageslag In kruising 3 is beide ouers oranje geeneen van die ouers swart maar

2.4.3Fenotipe Gevlek Geen vlekke Genotipe Meiose /gamete D , d Bevrugting Genotipe

2.4.1Gevlekte rug (1\

2.4.2Gevlekte paddas het nakomelinge sonder vlekke geproduseer OF Die gevlekte nakomelinge was driemaal meer as die nakomelinge sonder vlekke /verhouding van gevlekte nakomelinge teenoor nakomelinge met vlekke is 3:1

2.5.1Tipe antibiotikum (1\

2.5.2Dieselfde: Omgewingstoestande /voorbeeld Hoeveelheid van die antibiotikum onsentrasie van die antibiotikum

2.5.3Die ondersoek is gedoen oor 'n tydperk van ses maande Neem baie afmetings bereken die gemiddelde weerstand 'n Groot monstergrootte is gebruik /100 varkies Eni ge 2 (Merk slegs die eerste TWEE\

2.5.4Antibiotikum (1\

2.5.5Die gemiddelde persentasie weerstand van E.coli teen antibiotikum is laer as hulle

2.5.6

3.1.1Skedel Skedel Wenkbrou riwwe prominent Wenkbrou riwwe minder prominent Meer uitstaande kake prominent of prognaat

3.1Vrylik roterende arms Lang boarms Rotasie by die elmbooggewrigte Rotasie by die hand gewrigte Opponerende duime Kaal vingerpunte /naels in plaas van kloue

3.1.3Omdat d ie kranium die brein huisves sal 'n root kranium volume

3.2.1Om op twee bene te loop (2\

3.2.2(a\ (b\ (c\ Foramen magnum het na 'n meer vorentoe posisie beweeg om die rugmurg toe te laat om vertikaal binne te gaan Bekkengordel is

3.3Die bevolking van 'n spesifieke spesie word geskei deur 'n geografiese versperring Daar is geen geenvloei tussen die twee bevolkings nie Natuurlike seleksie vind onafhanklik in elk van die bevolkings plaas

3.4.1orkruising ukrak e/ewekansige rangskikking van chromosome Lukrake/ewekansige paring Lukrake/ewekansige bevrugting Chromosoommutasie Kontinue variasie Diskont

3.4.2

3.4.3Meer hemoglobien teenwoordig om vir maksimum absorbsie van beskikbare suurstof toe te laat Meer suurstof sal beskikbaar wees om aan hul energiebehoeftes te voldoen (2\

3.4.4

Topics Identified

Genetics

Mark Allocation

Total150 marks

Sections40 + 40 = 80 marks

Paper information

SubjectLife Sciences

Year2019

SessionNovember

TypeMemo

PaperPaper 2

LanguageAfrikaans

Pages11

Downloads3

Examination context

Decade2010s

Years ago7y

SeasonSpring (SH)

Start dayTuesday

Exam periodNovember 2019

Days since exam2,547

About Life Sciences examination preparation

Grade 12 Life Sciences combines biological knowledge with interpretation and scientific reasoning. Paper 1 covers molecular biology, genetics, and cell biology, while Paper 2 tests human physiology, ecology, and evolution.

Every available Grade 12 Life Sciences past paper and memorandum is collected in the Life Sciences hub at life-sciences.freemode.co.za — browse all years, sessions and languages in one place.

How to use this resource for revision

A past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?

For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.

recalling biological concepts

applying knowledge to unfamiliar situations

interpreting diagrams and information

using scientific terminology

constructing precise written responses

A practical revision approach

Life Sciences rewards exact biological terminology — examiners deduct marks for paraphrased definitions. Create a glossary of key terms and practice using them in context.

Grade 12 subject hubs

Each matric subject has its own dedicated hub on Freemode with every past paper and marking memorandum we have archived for that subject.

➗ Mathematics View papers → 📊 Mathematical Literacy View papers → ⚗️ Physical Sciences View papers → 🧬 Life Sciences 📍 You are here 📒 Accounting View papers → 💼 Business Studies View papers → 📈 Economics View papers → 🌍 Geography View papers → 🏛️ History View papers → 📖 English View papers → 🇿🇦 Afrikaans View papers → 🗣️ IsiNdebele View papers → 🗣️ IsiXhosa View papers → 🗣️ IsiZulu View papers → 🗣️ Sepedi View papers → 🗣️ Sesotho View papers → 🗣️ Setswana View papers → 🌾 Agricultural Sciences View papers →

Corresponding examination paper

Examination paper available

Open the corresponding examination paper to practise the questions before reviewing the marking memorandum on this page. Attempt every question under timed conditions for the most realistic preparation.

Life Sciences Paper 2 (Afrikaans) →

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