Biology unit 5 - stimulus and response 4.0 / 5 based on 2 ratings ? BiologyA2/A-levelAQA Created by: NadineCreated on: 13-06-13 13:17 Stimulus A chnage in an organisms environment (internal or external) that can be detected by receptor cells 1 of 8 Receptor A specialized cell that detects a stimulus and initiates a nerve impulse 2 of 8 Kineses A change in the speed of random movement in response to a environmental stimuli 3 of 8 Taxis A directed movement toward or away from a stimulus 4 of 8 Sensory neurone A nerve cell that carries impulses from a receptor to the central nervous system 5 of 8 Central nervous system (CNS) CNS processes incoming information and produces a response, often based on previous experience 6 of 8 Motor neurone A nerve cell that carries impulses from the CNS to the effectors 7 of 8 Effectors Organs that bring about a response, usually muscle or glands. 8 of 8
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