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GCSE Biology · key term
A change produced by an organism following the detection of a stimulus.
Used by OCR
Specification B3.1b · Paper 1 (Foundation), Paper 3 (Higher)
The action or change produced after a stimulus has been detected and information has been coordinated.
Revise: Coordinated responseThe nervous system detects such changes, processes information about them and coordinates suitable responses.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Nervous System ComponentsThe nervous system coordinates these responses rapidly.
A change in an organism's activity when a condition changes, such as a rise in pulse rate during exercise.
For an explanation of a coordinated response, give the complete causal sequence rather than merely listing structures: stimulus → receptor → sensory neurone → CNS → motor neurone → effector → response.
Distinguish the stimulus from the response. For example, a moving object is a stimulus, whereas contracting muscles to catch it is the response.
Write the pathway in the correct direction: stimulus → receptor → sensory neuron → CNS → motor neuron → effector → response.
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