IGCSE Biology
Unit 1 Organisms and Life processes
- Life processes
- The variety of living organisms
- Breathing and gas exchange
- Food and digestion
- Blood and circulation
- Coordination
- Chemical Coordination
- Homeostasis and excretion
- Reproduction in Humans
- Plants and food
- Transport in plants
- Chemical coordination in plants
- Reproduction in plants
Unit 4 Ecology and the Environment
- Ecosystems
- Human influences on the environment
Unit 5 Variation and selection
- Chromosomes, Genes and DNA
- Cell Division
- Genes and Inheritance
- Natural selection and evolution
- Selective breeding
Unit 6 Microorganisms and genetic modification
- Using microorganisms
- Geneic modification
Section 1 - The Nature and Variety of Organisms
- Characteristics of Living Organisms
- Levels of Organisation
- Specialised Cells and Stem Cells
- Plants, Animals and Fungi
- Protoctists, Bacteria and Viruses
- Enzymes
- Investigating Enzyme Activity
- Diffusion
- Osmosis
- Diffusion and Osmosis Experiments
- Active Transport
- Biological Molecules
- Food Tests
- A balanced Diet
- Energy from food
- Enzymes and digestion
- The Alimentary Canal
Section 3 - Plant Nutrition and Transport
- Photosynthesis
- Rate of Photosynthesis
- Photosynthesis Experiments
- Minerals for Healthy Growth
- Transport in Plants
- Transpiration
- Measuring Transpiration
Section 4 - Respiration and Gas Exchange
- Respiration
- Investigating Respiration
- Gas Exchange - Flowering Plants
- The Respiratory System and Ventilation
- Investigating Breathing
- Gas Exchange - Humans
- Functions of the Blood
- White blood cells and immunity
- Blood Vessels
- The Heart
- Circulation and Coronary Heart Disease
- Excretion - The Kidneys
- Osmoregulation - The Kidneys
Section 6 - Coordination and Response
- The Nervous System and Responding to Stimuli
- Reflexes
- The Eye
- Hormones
- Homeostasis
- More on Homeostasis
- Responses in Plants
Section 7 - Reproduction and Inheritance
- DNA, Genes and Chromosomes
- Protein Synthesis
- Asexual Reproduction and Mitosis
- Sexual Reproduction and Meiosis
- Sexual Reproduction in Plants
- Fertilisation and Germination in Plants
- Investigating Seed Germination
- Asexual Reproduction in Plants
- Human Reproductive Systems
- The Menstrual Cycle and Pregnancy
- Genetic Diagrams
- More Genetic Diagrams
- Family Pedigrees and Sex Determination
- Variation
- Evolution and Natural Selection
- Mutations and Antibiotic Resistance
Section 8 - Ecology and the Environment
- Ecosystems and Biodiversity
- Using Quadrats
- Pyramids of Nmber, Biomass and Energy
- Energy Transfer and Food Webs
- The Carbon Cycle
- The Nitrogen Cycle
- Air Pollution
- The Greenhouse Effect
- Water Pollution and Deforestation
Section 9 - Use of Biological Resources
- Increasing Crop Yields
- Bacteria and Making Yoghurt
- Yeast and Making Bread
- Selective Breeding
- Fishing Farming
- Genetic Engineering
- Cloning
Practice papers