Igcse Model Questions Vol1 2017 Biology Question 8
Practice objective / multiple choice question 8 from the 2017 Igcse Model Questions Vol1 Biology examination.
In a simple reflex arc, the sensory neuron conducts an impulse a distance of 0.8 m to the spinal cord at a speed of 50 m s\(^{-1}\). The motor neuron then conducts the impulse a further 0.5 m to the effector muscle at 60 m s\(^{-1}\). Each synapse in the pathway introduces a delay of 0.5 ms. Calculate the total time from the initial stimulus to the onset of muscle contraction, giving your answer in milliseconds to one decimal place.
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This is Igcse Model Questions Vol1 2017 Biology Question 8. It is one of the objective questions from the 2017 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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