Igcse Model Questions Vol1 2020 Biology Question 28
Practice objective / multiple choice question 28 from the 2020 Igcse Model Questions Vol1 Biology examination.
In a simple reflex arc, a sensory receptor is 0.5 m from the spinal cord, and the motor neuron travels 0.3 m from the spinal cord to the effector muscle. The conduction speed of the afferent (sensory) fibre is 50 m s⁻¹, the efferent (motor) fibre conducts at 60 m s⁻¹, and the synaptic delay at the spinal interneuron is 0.5 ms. If the measured total reaction time for the response is 30 ms, calculate the time taken for central processing (the time not accounted for by peripheral conduction and synaptic delay).
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About This Question
This is Igcse Model Questions Vol1 2020 Biology Question 28. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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