Neco Model Questions Vol1 2019 Biology Question 25
Practice objective / multiple choice question 25 from the 2019 Neco Model Questions Vol1 Biology examination.
A simple reflex arc consists of a sensory neuron \(0.8\ \text{m}\) long, an interneuron that adds a central‑processing delay of \(2\ \text{ms}\), and a motor neuron \(0.6\ \text{m}\) long. Conduction velocities are \(80\ \text{m\ s}^{-1}\) for the sensory fibre and \(60\ \text{m\ s}^{-1}\) for the motor fibre. Each synapse introduces a delay of \(0.5\ \text{ms}\). Determine the total time from the moment a stimulus is applied to the muscle contraction, in milliseconds.
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This is Neco Model Questions Vol1 2019 Biology Question 25. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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