GCSE›AQA GCSE Biology›Mind mapsPrinciples of HomeostasisAQA GCSE Biology: Mind mapStudy pack PDFAlso for this subtopic:Revision notesFlashcardsSubtopic testCover factsWhat is it?Regulating internal conditions of a cell or organismKeeps conditions optimum for functionEnzymes need a narrow range to work wellOutside it, reactions slow or enzymes denatureWhat is controlledBlood glucose concentrationBody temperatureWater levelsTwo systemsNervous: fast, electrical impulsesHormonal: slower, longer-lastingBoth use the same basic control patternHomeostasiskeeping conditions steadyThree componentsReceptors detect stimuliCoordination centres process informationCoordinators: brain, spinal cord, pancreasEffectors are muscles or glandsInformation flowStimulus → receptor → coordinatorCoordinator → effector → responseResponse restores optimum levelsExam tipsFor any example, name the receptor, coordinator and effectorLearn the pathway in order