Neco 2024 Biology Question 30
Practice objective / multiple choice question 30 from the 2024 Neco Biology examination.
In a simple reflex arc, the distance from a skin mechanoreceptor to the spinal cord is 0.5 m and the distance from the spinal cord to the effector muscle is 0.3 m. Sensory A‑beta fibres conduct at 50 m s\(^{-1}\), motor alpha fibres at 60 m s\(^{-1}\). The synaptic delay in the spinal cord is 0.5 ms and the neuromuscular junction delay is 0.5 ms. Calculate the total reaction time (in milliseconds) from stimulus onset to muscle contraction.
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About This Question
This is Neco 2024 Biology Question 30. It is one of the objective questions from the 2024 Neco Biology examination.
Difficulty level: Medium .
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