Communication Keeping cells active Stimulus & response Coordination Cell signalling 2.0 / 5 based on 1 rating ? BiologyCellular processes and structureA2/A-levelAll boards Created by: LizzieCreated on: 15-11-11 15:54 Why do multicellular organisms need to respond to Changes may place stress on organism Organism montiors changes Organism makes behavioural and physiological changes to reduce stress 1 of 4 Why are communication systems needed to coordinate Cells monitoring blood some distance away from organs removing substances from blood Communication system needed so different parts of body can work together effectively 2 of 4 Define cell signalling. Process that allows communication between cells One cell releases chemical signal Another cell detects signal Cell then responds to received signal 3 of 4 What's the difference between neuronal and hormona Neuronal system network of neurones Can conduct signal very quickly Enables rapid response to stimuli Short-term responses Hormonal system transports signals in blood Longer-term responses Produced by certain organs Recognised by target cells 4 of 4
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