Edexcel IGCSE Biology
Exam Questions

Characteristics of Living Organisms, Common Features: Eukaryotic Organisms, Common Features: Prokaryotic Organisms, Pathogens

Levels of Organisation

Animal & Plant Cells: Similarities & Differences, Cell Structures, Importance of Cell Differentiation, Stem Cells in Medicine: Advantages & Disadvantages

Structure of Biological Molecules, Practical: Food Tests, Role of Enzymes, Temperature & Enzyme Function, Practical: Investigating Temperature & Enzyme Activity, pH & Enzyme Function, Practical: Investigating pH & Enzyme Activity

Diffusion, Osmosis & Active Transport, Factors Affecting the Rate of Movement of Substances, Practical: Investigating Diffusion & Osmosis

Balanced Diet, Bile, Factors Affecting the Rate of Photosynthesis, Human Alimentary Canal: Structure & Function, Leaf: Structure & Adaptations, Peristalsis, Plants & Mineral Ions, Practical: Energy Content of a Food Sample, Practical: Investigating Photosynthesis, Role of Digestive Enzymes, Small Intestine: Structure & Adaptations, The Process of Photosynthesis

Aerobic & Anaerobic Respiration, Practical: Investigating Respiration, Process of Respiration

Alveoli: Adaptations for Gas Exchange, Gas Exchange in Plants, Gas Exchange: Night vs Day, Leaf Adaptations for Gas Exchange, Practical: The Effect of Exercise on Breathing, Practical: The Effect of Light on Gas Exchange in Plants, Role of the Intercostal Muscles & Diaphragm, Smoking & the Gas Exchange System, Structure of the Breathing System

Absorption of Water by Root Hair Cells, Blood Vessels: Structure & Function, Circulatory System: General Structure, Heart Rate & Exercise, Platelets & Blood Clotting, Practical: Factors Affecting Transpiration, Risk Factors for Coronary Heart Disease, Role of the Xylem & Phloem, Structure & Function of the Heart, The Blood, The Need for a Transport System, Transpiration, Vaccinations, White Blood Cells & Immunity

ADH & Composition of Urine, Excretion in Plants, Kidney: Excretion & Osmoregulation, Nephron Function, Nephron Structure, Excretion in Humans, Structure of the Urinary System

Co-ordinating Response, Homeostasis, Human Nervous System, Nervous & Hormonal Control, Response to Changes in the Environment, Response to Stimuli: Plants, Role of Neurotransmitters at Synapses, Simple Reflex Arc, The Human Eye: Function, The Human Eye: Structure, The Role of Hormones: Advanced, The Role of Hormones: Basic, The Role of Skin in Temperature Regulation

Sexual & Asexual Reproduction: Differences, Gametes & Fertilisation, Adaptations for Pollination, The Process of Fertilisation in Plants, Practical: Conditions for Germination, Germinating Seeds, Asexual Plant Reproduction, Human Reproductive Systems, Roles of Oestrogen & Progesterone in the Menstrual Cycle, Roles of FSH & LH in the menstrual cycle, Role of the Placenta, Amniotic Fluid, Development of Secondary Sexual Characteristics

Alleles, Antibiotic Resistance, Codominance, Darwin's Theory of Evolution by Natural Selection, Diploid vs Haploid, DNA Structure, Family Pedigrees, Key Terms in Genetics, Meiosis, Mitosis, Monohybrid Inheritance: Genetic Diagrams, Mutation, Mutation: Advanced, Polygenic Inheritance, Random Fertilisation & Genetic Variation, RNA Structure, Sex Chromosomes, Stages of Protein Synthesis, The Genome & Genes, Variation with a Species

Abiotic & Biotic Factors, Biodiversity, Population, Community, Habitat & Ecosystem, Practical: Investigating Population Size, Practical: Investigating the Distribution of Organisms

Food chains, Food webs & Pyramids, Transfers Along a Food Chain, Trophic Levels

Carbon Cycle, Nitrogen Cycle

Biological Consequences of Air Pollution, Biological Consequences of Water Pollution, Enhanced Greenhouse Effect, Greenhouse Gases, The Effects of Deforestation

Crop Plants: Fertiliser, Crop Plants: Glasshouses & Polythene Tunnels, Crop Plants: Increasing Carbon Dioxide & Temperature, Crop Plants: Pest Control, Fish Farming, Industrial Fermenters, Practical: Investigating Anaerobic Respiration in Yeast, Role of Bacteria in Yoghurt Production, Yeast in Food Production

Selective Breeding in Animals, Selective Breeding in Plants

GM Plants & Food Production, Manufacturing Human Insulin, The Process of Genetic Modification, Transgenic

The Process of Micropropagation, The Production of Cloned Mammals