Waec Model Questions Vol1 2018 Biology Question 22

Practice objective / multiple choice question 22 from the 2018 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2018 Biology Objective / Multiple Choice Medium Difficulty
Question 22 WAEC_MODEL_QUESTIONS_VOL1 • 2018 • BIOLOGY • objective

In a monosynaptic stretch reflex, the sensory neuron conducts an impulse over a distance of 0.40 m at a velocity of 80 m s⁻¹, then synapses onto the motor neuron with a synaptic delay of 0.5 ms, after which the motor neuron conducts the impulse over 0.60 m at 60 m s⁻¹ to the effector muscle. Calculate the total elapsed time from the onset of muscle stretch to the beginning of muscle contraction. Express your answer in milliseconds (ms).

Answer Options

Correct Answer A. 15.5 ms
B. 18.0 ms
C. 16.0 ms
D. 14.5 ms
Correct Answer
A
Correct Option:
15.5 ms

About This Question

This is Waec Model Questions Vol1 2018 Biology Question 22. It is a objective / multiple choice question from the 2018 Waec Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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