Neco Model Questions Vol1 2021 Biology Question 8

Practice essay / theory question 8 from the 2021 Neco Model Questions Vol1 Biology examination. This question covers Coordination .

Neco Model Questions Vol1 2021 Biology Essay / Theory

Topic: Coordination

Question 8 NECO_MODEL_QUESTIONS_VOL1 • 2021 • BIOLOGY • essay

Coordination of activities in the human body is achieved through the nervous and endocrine systems.

Question Parts

( a )

Describe the complete pathway of a stretch (myotatic) reflex, naming all neuronal components, synapses and the muscles involved, and explain how this reflex contributes to the maintenance of posture.

( b )

Compare the speed and duration of responses mediated by the nervous system with those mediated by the endocrine system. Provide one example for each system to illustrate your points.

( c )

A toxin blocks acetylcholine receptors at the neuromuscular junction. Predict the effect of this blockage on muscle coordination and explain the underlying mechanism. Suggest one pharmacological intervention that could mitigate the toxin’s action.

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About This Question

This is Neco Model Questions Vol1 2021 Biology Question 8. It is one of the essay questions from the 2021 Neco Model Questions Vol1 Biology examination.

The question covers Coordination .

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