Life Sciences Memo 1 (English)

November 2020 — Grade 12 / Matric — Life Sciences

Memo 2020 Grade 12 English Life Sciences Hub →

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🎯 150 marks 📄 10 pages 📝 40 items found 📚 5 topics

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Q1— Section header —

1.2.1Ozone /stratosphere

1.2.2Poaching

1.2.3Haploid

1.2.4Phototropism

1.2.5Luteinising hormone/LH

1.2.6Corpus callosum

1.2.7Umbilical artery

1.2.8Grommet

1.2.9Parasympathetic nervous system 1. .10 Choroid (10 x 1\ (10\

1.3.3B only None Both A and (3 x 2\

1.4.2Acrosome Mitochondria (1\ (1\

1.4.3(a\ (b\ (c\ (1\ (1\ (1\

1.4.5Nucleus Mitosis (2\ (1\ (8\

1.5.3and (Mark first TWO only\ and 3 (Mark first TWO only\ and 3

Q2— Section header —

2.1.1(a\ (b\ (c\ Cerebrum Medulla oblongata Eustachian tube (1\ (1\ (1\

2.1.2Round window (2\

2.1.3Hair cells Organ of Corti (1\ 2.

2.1.5Part B control vital processes /heartbeat/breathing These processes will stop leading to death

2.1The oval window /Part will not vibrate freely

2.2For distant vision The ciliary muscle is relaxe The ciliary body/choroid layer moves

2.32. .1

2.3.2

2.3.3Thyrotoxicosis increases the metabolic rate rate of cellular respiration More glucose is used less glucose is stored

2.4.4So that the plant hormone auxins from the apical tip ould diffuse into the block of

3.1.1Centriole /centrosome (1\

3.1.2Anaphase I (1\

3.1.3he s pindle fibre contract The centromeres split

3.1.7Crossing over It leads to genetic variation (Mark first ONE only\ 46

3.2.2The site of fertilisation The site of zygote division The t ransfer of

3.2.3Diploid cells in the ovary undergo mitosis o form numerous follicles Under the influence of FSH

3.2.4It is hollow organ It has a muscular wall It has a blood

Q3— Section header —

3.3.7Male f ertility Measuring the sperm count Age Diet Exercise

3.4.1

3.4.2

3.4.3

3.4.4 Eutrophication he crop yield reaches a maximum at the recommended amount sing more fertilizer will cost more

Q4— Section header —

Topics Identified

Cell BiologyGeneticsHuman PhysiologyPhotosynthesisRespiration

Mark Allocation

Total150 marks

Sections40 + 40 = 80 marks

Paper information

SubjectLife Sciences

Year2020

SessionNovember

TypeMemo

PaperPaper 1

LanguageEnglish

Pages10

Downloads4

Examination context

Decade2020s

Years ago6y

SeasonSpring (SH)

Start dayThursday

Exam periodNovember 2020

Days since exam2,180

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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Archived on7 September 2026

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