Waec Model Questions Vol1 2024 Biology Question 34
Practice objective / multiple choice question 34 from the 2024 Waec Model Questions Vol1 Biology examination.
A rapid withdrawal reflex in the hand can be mediated by two possible neural routes. Route A consists of a sensory neuron → interneuron → motor neuron, with each synapse introducing a delay of 0.5 ms. Route B bypasses the interneuron and involves a direct monosynaptic connection between the sensory and motor neurons, but the axonal conduction distance is longer, adding 1.2 ms to the total time; each of its two synapses contributes a delay of 0.3 ms. Assuming the conduction time of the interneuron in Route A is negligible, which route yields the shorter overall response time, and what is that time in milliseconds?
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This is Waec Model Questions Vol1 2024 Biology Question 34. It is one of the objective questions from the 2024 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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