IGCSE›Edexcel IGCSE Biology›Mind mapsCharacteristics of Living OrganismsEdexcel IGCSE Biology: Mind mapStudy pack PDFAlso for this subtopic:Revision notesFlashcardsSubtopic testCover factsMRS GRENMovement, Respiration, SensitivityGrowth, ReproductionExcretion: removing waste products of metabolismNutrition: obtaining food for energy and growthAlso homeostasis: control of internal conditionsEukaryotesCells have a nucleus and organellesPlants make food by photosynthesisFungi feed by extracellular digestionProtoctists are mostly single-celled, e.g. AmoebaAnimals feed on other organismsProkaryotesBacteria have no true nucleusCircular chromosome free in cytoplasmPlasmids are small extra DNA circlesHas cell wall, membrane and cytoplasmLiving organismscharacteristics and kingdomsMRS GRENPathogensMicro-organism that causes diseaseCan be fungi, bacteria, protoctists or virusesVirusesGenetic material in a protein coatMuch smaller than bacteriaReproduce only inside a host cellNot classed as livingExam tipsState each characteristic in full biological termsBacterial wall is not cellulose