Gce Model Questions Vol1 2025 Biology Question 27
Practice objective / multiple choice question 27 from the 2025 Gce Model Questions Vol1 Biology examination.
In a reflex arc, the distance from a skin mechanoreceptor to the spinal cord is \(0.5\) m and the sensory nerve conducts at \(50\ \text{m\,s}^{-1}\). The synapse adds a delay of \(0.5\ \text{ms}\). The motor neuron then travels \(0.4\) m to the effector muscle at \(60\ \text{m\,s}^{-1}\) and the muscle needs \(5\ \text{ms}\) to develop tension. Calculate the total reaction time in milliseconds (to one decimal place).
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This is Gce Model Questions Vol1 2025 Biology Question 27. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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