Igcse Model Questions Vol1 2017 Biology Question 33
Practice objective / multiple choice question 33 from the 2017 Igcse Model Questions Vol1 Biology examination.
A simple reflex arc consists of a sensory neuron (length \(0.5\,\text{m}\)), an interneuron (length \(0.3\,\text{m}\)) and a motor neuron (length \(0.4\,\text{m}\)). All three fibres are unmyelinated and conduct impulses at \(80\,\text{m s}^{-1}\). Each synapse in the arc introduces a delay of \(0.5\,\text{ms}\). Calculate the total time from the initial stimulus to the contraction of the target muscle (in milliseconds).
Answer Options
About This Question
This is Igcse Model Questions Vol1 2017 Biology Question 33. It is one of the objective questions from the 2017 Igcse 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.