Gce Model Questions Vol1 2024 Biology Question 31
Practice objective / multiple choice question 31 from the 2024 Gce Model Questions Vol1 Biology examination.
A polysynaptic reflex involves a sensory neuron that travels 0.5 m to the spinal cord at a conduction velocity of 60 m s⁻¹, two interneurons each adding a synaptic delay of 0.5 ms, and a motor neuron that travels 0.8 m to the muscle at 80 m s⁻¹. After the final synapse there is an excitation‑contraction coupling delay of 2 ms and the muscle takes 30 ms to develop tension. Calculate the total time from the initial stimulus to the onset of muscle contraction and state whether this time exceeds 45 ms.
Answer Options
About This Question
This is Gce Model Questions Vol1 2024 Biology Question 31. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Biology examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.