This second edition of the popular Higher Human Biology Course Notes is perfect for use as a classroom support to equip students with key information on the three course units in a bright new layout. All processes and experiments are explained clearly using a step-by-step approach, whilst diagrams and illustrations support understanding and help students to engage with the text. New topic-specific questions for students help them reinforce understanding and practice assessed skills. Contents Introduction Unit 1: Cell function and inheritance * The cell * Enzymes * Proteins * DNA, RNA and protein synthesis * Energy transfer * Anaerobic and aerobic respiration * Sources of energy * Cell membranes * Membrane transport * Immunity * Viruses * Inheritance * Mitosis * Meiosis * Monohybrid inheritance * Sex linkage * Polygenic inheritance * Mutations * Genetic screening and counselling Unit 2: The continuation of life * Reproduction - female * Reproduction - male * Infertility * Contraception * Prenatal development * Birth * Postnatal development * Transport systems * The circulatory system * The heart and the cardiac cycle * Blood pressure * Plasma, tissue fluid and lymph * Red blood cells * Gas transport * The absorption of nutrients * The liver * The kidneys * Regulating mechanisms * Hypothermia Unit 3: Behaviour, population and the environment * The brain * Neurones * Neurotransmitters * Memory * The development of behaviour * Infant attachment * Communication * Language * The effect of experience * Group behaviour * The population explosion * Feeding the human population * Water supply and the environment * Disease and the human population * The nitrogen cycle * The carbon cycle Tips for the exam Answers to quick questions Glossary