Life Sciences Memo 1 (English)

November 2017 — Grade 12 / Matric — Life Sciences

Memo 2017 Grade 12 English Life Sciences Hub →

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🎯 150 marks 📄 11 pages 📝 27 items found 📚 5 topics

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Q1— Section header —

1.1.10(10 x 2\ (20\

1.2.1External fertilisation

1.2.2Chiasma

1.2.3Aldosterone

1.2.4Homeostasis

1.2.5Amniotic egg

1.2.6Luteinising hormone /LH

1.2.7Astigmatism

1.2.8Corpus callosum

1.2.9Optic nerve

1.2.10Meninges (10\

1.3.3None B only A only x 2\

1.4.4Motor neuron (a\ Nucleus /nuclear membrane (b\ Cytoplasm (c\

1.5.5Pancreas Insulin Glucagon Diabetes mellitus Negative feedback (1\ (1\ (1\

Q2— Section header —

2.1.5Northern Cape Eastern Cape 4,7 OR 74,7 OR (if candidate does not have above answer\ 33,4/(78,1

2.1.6Habitats are destroyed which will lead to a loss in biodiversity When flood gates are opened flooding may occur in the areas downstream from the dam resulting in erosion /loss of top soil/loss of live

2.2.3

2.2.5Chemical control The armyworm may lead to crop failure /food shortages that will mean financial/job losses for farmers Food shortages /maize will have to be imported

2.3.4Telophase II There are cells Each cell contains only a single set of replicated /single stranded chromosomes (MARK FIRST TWO ONLY\

2.4.3.4.4 (a\ Chorion /Amnion (b\ Umbilical cord Protects the foetus from shock /Acts as a shock absorber Protects the foetus from drying out

3.1.2The growth of a plant part of a plant in response to stimulus Checklist for marking the

3.2.2Tip of the stem tip of root /apical meristem/terminal bud/apical bud he stem grows bends towards the light (1\

Q3— Section header —

3.3.6Group B The mass of the rats decreased /changed from 320 g to 309 ince body fat is used / less fat is stored The oxygen consumption was the highest /(10ml/kg/min\

Q4— Section header —

Topics Identified

Cell BiologyGeneticsEcologyHuman PhysiologyRespiration

Mark Allocation

Total150 marks

Sections40 + 40 = 80 marks

Paper information

SubjectLife Sciences

Year2017

SessionNovember

TypeMemo

PaperPaper 1

LanguageEnglish

Pages11

Downloads6

Examination context

Decade2010s

Years ago9y

SeasonSpring (SH)

Start daySunday

Exam periodNovember 2017

Days since exam3,275

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 (English) →

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File size309.8 KB

Pages11

Archived on7 September 2026

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