Neco 2023 Biology Question 12
Practice objective / multiple choice question 12 from the 2023 Neco Biology examination.
In a stretch reflex, the afferent (sensory) neuron conducts impulses at 80\(\text{m s}^{-1}\) over a distance of 0.5\(\text{m}\) and the efferent (motor) neuron conducts at 60\(\text{m s}^{-1}\) over 0.4\(\text{m}\) when the body temperature is 37\(^{\circ}\)C. For a child whose body temperature is 30\(^{\circ}\)C, conduction velocities change according to the Q10 rule with Q10 = 2.0. The synaptic delay at the spinal cord is 0.5\(\text{ms}\). Calculate the total reflex time (in milliseconds) at 30\(^{\circ}\)C and state whether it is less than 5\(\text{ms}\).
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About This Question
This is Neco 2023 Biology Question 12. It is one of the objective questions from the 2023 Neco Biology examination.
Difficulty level: Medium .
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