Biology 0610 · IGCSE · Coordination and response

Coordination and response — practice question

The diagram illustrates a synapse in a reflex arc. Which two neurones are shown, and in which direction does the neurotransmitter travel?

  • Aneurone P: motor; neurone Q: relay; direction: P → Q
  • Bneurone P: motor; neurone Q: sensory; direction: P → Q
  • Cneurone P: relay; neurone Q: motor; direction: Q → P
  • Dneurone P: relay; neurone Q: sensory; direction: Q → P

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