life sciences Memo 1 (Afrikaans)

November 2009 — Grade 12 / Matric — life sciences

Memo 2009 Grade 12 Afrikaans Life Sciences Hub →

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🎯 150 marks 📄 12 pages 📝 39 items found 📚 1 topics

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Q1— Section header —

1.2.6/oviduk / eierleier Graafse follikel (Naelstring) aar vene Oksitosien Saad

1.4.3

1.4.4(a) (b) Die volgorde van die aminosure sal verander /die

1.5.2Anafase II (Suster) chromatiedes / (dogter)chromosome beweeg / word getrek na die pole (1)1

1.5.3Spoel Selmembraan (2)2

1.5.4(a) (b) (1) (1)1

1.5.6Ovarium Nee (1) (1)1

1.5.7

1.5.8- Reduksie/halve ring van chromosoomgetal /laat gametofiet vorm / hou chromosoomgetal van generasie tot generasie konstant / voorkom ve rdubbeling van chromosoomgetal tydens bevrugting. - Dra by tot genetiese variasie

1.6.1Die bloeisels met kroonblare lok meer insekte vir bestuiwing -agente bestuiwers

1.6.2dieselfde bloeisel

1.6.3Vergroot die monstergrootte Gebruik dieselfde grootte bloeisels Gebruik bloeisels van dieselfde appelboom

Q2— Section header —

2.1.1A - prostaatklier B - vas deferens /spermbuis E - uretra /nukleus

2.1.2

2.1.3testis (2)2

2.1.4Om die testis by 'n temperatuur te hou wat (ongeveer 3 C) laer is as die liggaamstemperatuur vir die produsering van gesonde sperms /sodat die sperms kan oorleef

2.1.51

2.1.6(a) (b) (c) om na die uretra en in die vrou in te beweeg nie

2.2.4

2.2.8As die vlak van estrogeen styg neem die dikte van die endometrium ook toe /bloedtoevoer/meer klierryk van die endometrium vir groter kanse op inplanting / om swangerskap in stand te hou

Q3— Section header —

3.1AB

3.2.1/ 46 chromosome Vrouens met Turner se sindroom: Slegs een X omdat haar

3.3.1120 102 100 = 85

3.1.1(a\I (2\ (b\I (Sien slegs eerste DRIE na\ 3.1.2 Dit is 'n geslagsgekoppelde siekte Mans benodig slegs een resessiewe alleel terwyl vrouens beide resessiewe allele omdat hulle 'n XX-kombinasie het enige (4\

3.2.2

3.3.2Kies dieselfde getal seuns en meisies s moes ewekansig (lukraak\ (2\ Blaai om asseblief

3.4Meiose

3.5- Tieners is nie goed oor die gevolge van seks ingelig nie - Hulle beoefen nie veilige seks / gebruik nie voorbehoedmiddels nie - Minder aandag/dissipline word oor tieners uitgeoefen ing/seksuele mishandeling

Q4— Section header —

4.1.11 : 2 : 1 (2\

4.1.2Nasientabel vir die punteto word vir "korrekte soort grafiek", sowel as vir die trek van die sektore in die korrekte verhoudings. (7\

4.1.3Beide allele is dominant teenoor die ander nie van dieselfde dier waargeneem (3\ Korrekte verhouding van 1 punt vir korrekte verhoudings in sirkelgrafiek Byskrif / sleutel vir elke sektor 3 punte (1 punt vir elke korrekte byskrif\

4.2.1Hipotese formulering Monsterneming

4.2.2(a) (b) (c) Getal leerders Nee

4.2.3(a)

4.3

Multiple Choice Options

C)laer is

Topics Identified

Genetics

Mark Allocation

Total150 marks

Sections30 + 40 = 70 marks

Per-question sum242 marks

Paper information

Subjectlife sciences

Year2009

SessionNovember

TypeMemo

PaperPaper 1

LanguageAfrikaans

Pages12

Downloads5

Examination context

Decade2000s

Years ago17y

SeasonSpring (SH)

Start dayThursday

Exam periodNovember 2009

Days since exam6,198

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 1 (Afrikaans) →

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