Edexcel IGCSE Biology (Modular): Unit 1
Exam Questions

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

Levels of Organisation

Cell Structures, Animal & Plant Cells: Similarities & Differences, 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

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

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

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