I got an A* in Biology GCSE so here are my notes Biology IGCSE revision notes - made for Edexcel but can be used for other exam boards Includes: CELL STRUCTURE TURGID CELLS IN PLANTS MOVEMENT IN AND OUT OF CELLS BIOLOGICAL MOLECULES ENZYMES NUTRITION - HUMANS BILE ROLES OF DIGESTIVE ENZYMES VILLI FUNCTIONS OF THE HUMAN ALIMENTARY CANAL NUTRITION - PLANTS RESPIRATION GAS EXCHANGE - PLANTS GAS EXCHANGE - HUMANS VENTILATION ALVEOLI ADAPTION BIOLOGICAL CONSEQUENCES OF SMOKING TRANSPORT - HUMANS BLOOD VESSELS TRANSPORT - PLANTS EXCRETION COORDINATION & RESPONSE - HUMANS CHEMICAL COORDINATION ENDOCRINE SYSTEM HOMEOSTASIS COORDINATION & RESPONSE - PLANTS