Neco 2024 Biology Question 34
Practice objective / multiple choice question 34 from the 2024 Neco Biology examination.
A stretch reflex involves three neurons. The sensory neuron (myelinated) conducts impulses at 80 m/s over a distance of 0.4 m to the spinal cord. The interneuron (unmyelinated) conducts at 2 m/s over 0.1 m. The motor neuron (myelinated) conducts at 70 m/s over 0.3 m to the effector muscle. Each synapse introduces a delay of 0.5 ms. Calculate the total time (in milliseconds) taken for the reflex arc from stimulus to muscle contraction. Give your answer to the nearest whole millisecond.
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About This Question
This is Neco 2024 Biology Question 34. It is one of the objective questions from the 2024 Neco Biology examination.
Difficulty level: Medium .
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