Study Resource Hub | Dr Tracey Classens Life Sciences

✦ Members Resource Hub ✦

Your Life Sciences
Study Library

Interactive, exam-focused resources for Grade 11 and 12 Life Sciences — IEB & CAPS aligned. Each topic is a fully interactive experience, not just notes.

38Topics Live

2Grade Levels

100+Quiz Questions

∞Retries

🔎

No topics match your search. Try a different keyword.

Tools & Resources

All Grades 3 resources

Past Paper Question Bank

80+ IEB-style questions with mark schemes — searchable by topic, difficulty, and paper.

IEB Past PapersAll topics

Geological Time Scale

Earth's 4.6 billion year history — eons, eras, periods, mass extinctions, and the emergence of life.

Geological timeErasFossils

Scientific Skills

Scientific Method

Hypotheses, variables, experimental design, data analysis, and writing up results — the skills behind every IEB practical.

Scientific methodVariablesData

Grade 11

Life Sciences 19 topics live

Cell & Co. Office Building

Every organelle has a job title. Explore the building floor by floor to master cell structure and function.

Cell structureOrganelles✦ Free Preview

Mitosis: The Director's Cut

Each phase of mitosis is a scene in a film. Lights, camera, chromosome action.

MitosisCell division✦ Free Preview

Chromosome Matchup: The Reality Show

Homologous chromosomes find their match. Eight dramatic episodes covering meiosis I and II.

MeiosisVariation

Animal Body Plans

Body Plan Hotel Room

Symmetry, coeloms, and segmentation — every body plan has its own room in this biology hotel.

Body plansSymmetryCoelom

The Invisible Majority

Classification, bacteria, viruses, fungi, protists — the microorganisms that run the planet.

BacteriaVirusesClassification

The Plant Kingdom

470 million years of plant evolution — mosses to flowering plants, fynbos, and SA biomes.

Plant groupsFynbosSeeds

Animal Diversity

Animal Diversity

From sponges to mammals — vertebrates, invertebrates, SA wildlife, and conservation.

InvertebratesVertebratesSA Animals

Transport & Immunity

The Body's Defence Network

Blood components, three lines of defence, the immune response timeline, and disorders explained.

BloodImmune systemHIV

Circulatory System

The heart, blood vessels, cardiac cycle, blood pressure, and double circulation — the body's transport network.

HeartBlood vesselsCirculation

Gaseous Exchange

The Stadium Ventilation Crew

How lungs ventilate and exchange gases — ventilation mechanics, alveolar adaptations, and lung diseases.

LungsAlveoliVentilation

The Body's Recycling Plant

How the kidneys filter 180 litres of blood daily, recover everything useful, and balance your water levels.

KidneysOsmoregulationADH

The City Control Centre

The brain, spinal cord, neurons, synapses, and reflex arcs — the body's instant communication network.

Nervous systemReflex arc

The Body's Postal Service

Chemical messengers, glands, target organs, blood glucose regulation, and nervous vs endocrine comparison.

HormonesDiabetesFeedback

Support & Transport in Plants

Xylem, phloem, transpiration, translocation, and how plants move water and sugars through their vascular system.

XylemPhloemTranspiration

Nature Documentary: Plant Responses

Tropisms, auxin mechanics, nastic responses — narrated as a wildlife documentary scene by scene.

Movement & Support

Movement & Support in Animals

Skeletons, muscles, joints, tendons, and ligaments — how animals move and stay upright.

SkeletonMusclesJoints

How Plants Make More Plants

Asexual reproduction, flower structure, pollination, double fertilisation, and seed dispersal.

PollinationFertilisationDispersal

Planet Under Pressure

Climate change, biodiversity loss, pollution, and conservation — the human footprint on Earth.

Climate changeConservationPollution

The Body's Catering Company

Nutrients, digestion, enzyme action, absorption, and the hepatic portal system.

DigestionEnzymesAbsorption

Grade 12

Life Sciences 16 topics live

Full Revision · All Topics

Super Summary — Flashcards & Quiz Hub

All Grade 12 topics in one place — flashcards, step-by-step processes, comparison tables and self-test quizzes.

All topicsFlashcards✦ Start Here

Senses & Nervous System

The Senses & Nervous System

Eye, ear, skin receptors, reflex arc, accommodation, and visual defects — full sensory biology.

EyeEarReflex arc

Molecular Biology

DNA & RNA Blueprint Files

DNA structure, replication, and the difference between DNA and RNA — as architect blueprints.

DNARNAReplication

Molecular Biology

The Restaurant Kitchen: Protein Synthesis

Transcription and translation — orders taken, sent to the kitchen, and plated up as proteins.

Protein synthesisTranscriptionTranslation

Energy & Metabolism

Light reactions, the Calvin cycle, chloroplast structure, and the conversion of sunlight to sugar.

PhotosynthesisCalvin cycle✦ Free Preview

Energy & Metabolism

Cellular Respiration: The Power Station

Glycolysis, Krebs cycle, ETC — how cells break down glucose to make ATP. Aerobic vs anaerobic pathways.

RespirationATPKrebs cycle

Ecosystem Property Development

Food webs, energy flow, nutrient cycling — a property developer building an ecosystem from scratch.

EcosystemsFood websEnergy flow

Population Ecology: The Market Report

Population growth curves, carrying capacity, and limiting factors as a stock market analysis.

PopulationsCarrying capacityGrowth curves

Human Reproduction: Medical Case File

The reproductive system, fertilisation, pregnancy, and birth as a detailed clinical case study.

ReproductionPregnancyHormones

Animal Reproduction

Sexual and asexual reproduction across the animal kingdom — internal vs external fertilisation, and reproductive strategies.

Animal reproductionFertilisationStrategies

The Genetics Playground

Master monohybrid crosses, Punnett squares, and Mendel's laws through interactive worked examples.

MonohybridPunnett squareMendel

The Genetics Escape Room

Five puzzle rooms to crack. FOIL gametes, build the 4×4 Punnett, and decode the 9:3:3:1 ratio.

Dihybrid9:3:3:1 ratioGametes

Breaking News: Natural Selection

Live news coverage of natural selection, adaptation, and how populations change over time.

Natural selectionAdaptationDarwin

Origin & Fundamentals of Evolution

Theory development, evidence, natural selection, gene flow, genetic drift, variation, patterns of evolution, and artificial selection — the full IEB evolution package.

Theory of evolutionEvidenceMechanisms

Natural Selection & Human Evolution

From Australopithecus to Homo sapiens — the hominid timeline, skull comparisons, bipedalism, and SA fossil heritage.

HominidsSA FossilsBipedalism

Human Evolution

Human Evolution

Hominid timeline, skull features, bipedalism, fossil evidence, and SA fossil heritage in depth.

HominidsFossilsSA Heritage