IGCSE · Edexcel (Int)
Biology
Test yourself on any subtopic of International GCSE Biology Pearson Edexcel (4BI1) with quick self-marking quizzes. They cover all the key facts so you can be sure you know everything.
1.1 - Characteristics of Living Organisms1.2 - Variety of Living Organisms1.3 - Cell Structure1.4 - Magnification & Units1.5 - Specialised Cells & Differentiation1.6 - Stem Cells1.7 - Stem Cells in Medicine1.8 - Levels of Organisation1.9 - Enzymes1.10 - Diffusion1.11 - Osmosis1.12 - Active Transport1.13 - Surface Area to Volume Ratio1.14 - Exchange Surfaces
7.1 - Sexual & Asexual Reproduction7.2 - Advantages of Sexual & Asexual Reproduction7.3 - Flowers & Pollination7.4 - Fertilisation & Germination7.5 - Human Reproduction & Pregnancy7.6 - Puberty & the Menstrual Cycle7.7 - DNA, Chromosomes & the Genome7.8 - Structure of DNA7.9 - Protein Synthesis7.10 - Mitosis7.11 - Meiosis7.12 - Alleles & Phenotype7.13 - Genetic Diagrams7.14 - Family Pedigrees7.15 - Sex Determination7.16 - Variation7.17 - Natural Selection & Evolution7.18 - Darwin & Wallace7.19 - Evidence for Evolution7.20 - Mutations7.21 - Antibiotic Resistance
8.1 - Ecosystems & Competition8.2 - Abiotic & Biotic Factors8.3 - Food Chains & Food Webs8.4 - Trophic Levels8.5 - Biomass Transfer & Pyramids8.6 - The Carbon Cycle8.7 - The Nitrogen Cycle8.8 - Human Impact on the Environment8.9 - Global Warming8.10 - Eutrophication8.11 - Indicator Species8.12 - Deforestation
10.1 - Osmosis in Plant Tissue10.2 - Investigating Diffusion (Agar)10.3 - Food Tests10.4 - Effect of pH, Temperature & Concentration on Enzyme Activity10.5 - Energy Content of Food (Calorimetry)10.6 - Anaerobic Respiration in Yeast10.7 - Breathing & the Effect of Exercise10.8 - Rate of Photosynthesis10.9 - Testing a Leaf for Photosynthesis10.10 - Gas Exchange in Plants10.11 - Investigating Transpiration (Potometer)10.12 - Conditions Needed for Seed Germination10.13 - Field Sampling with Quadrats10.14 - Distribution Along a Transect10.15 - Investigating the Products of Respiration (Carbon Dioxide & Heat)