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  1. IGCSE
  3. Biology Edexcel

Biology

Spec 4BI1

Free Edexcel IGCSE Biology revision: 647 exam-style questions and past papers from 2019–2025 with mark schemes.

The nature and variety of living organisms

Characteristics of living organisms

Variety of living organisms

Structure and functions in living organisms

Level of organisation

Cell structure

Biological molecules

Movement of substances into and out of cells

Nutrition

Respiration

Gas exchange

Transport

Excretion

Co-ordination and response

Reproduction and inheritance

Reproduction

Inheritance

Ecology and the environment

The organism in the environment

Feeding relationships

Cycles within ecosystems

Human influences on the environment

Use of biological resources

Food production

Selective breeding

Genetic modification (genetic engineering)

Cloning

Assessment at a glance

AssessmentFormatDurationMarksWeighting
Paper 1Written exam2h110 marks61.1%
Paper 2Written exam1h 15m70 marks38.9%

Course aims & skills

Edexcel IGCSE Biology builds the skills examiners reward. By the end of the course you should be able to:

  • Recall and explain core biological facts, terms and processes
  • Apply biological knowledge to unfamiliar and practical contexts
  • Interpret and analyse experimental data presented in tables and graphs
  • Plan and evaluate biological investigations and practical procedures
  • Use mathematical and quantitative skills to solve biology problems
  • Construct and interpret genetic diagrams and pedigrees
  • Evaluate the reliability and validity of experimental methods and data
  • Explain the biological basis of real-world issues such as disease, ecology and biotechnology
  • Communicate scientific ideas clearly using correct terminology

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