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Thursday, 01 October 2026
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Biology Past Questions and Answers

Topic: Nervous co-ordination

Jamb Biology Questions - Nervous co-ordination

Question 1:
The following are connected with the movement of a reflex action (1) Central nervous (2) Muscles (3) Skin (4) Sensory nerve (5) Motor nerve. Which of the following sequences indicates a correct path?
  • A 1-2-3-4-5
  • B 2-1-4-5-3
  • C 3-4-1-2-5
  • D 4-1-5-2-3
  • E 3-4-1-5-2
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Question 2:
In a positive phototropic response of a coleoptile, the region of greatest curvature is brought about by the
  • A Movement of auxins away from the region of curvature
  • B Even distribution of auxins in all parts of the coleoptile
  • C Inhibition of growth by auxins in the region f smaller curvature
  • D Concentration of auxins in the region of curvature
  • E Absence of auxins in the coleoptile
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Question 3:
In mammals, stimulus is transferred from the receptor muscles to the central nervous system through the
  • A Motor neurons
  • B Effector muscles
  • C Dendrites
  • D Sensory neurons
  • E Synapses
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Question 4:
What part of the central nervous system is concerned with answering an examination question
  • A Cerebrum
  • B Cerebellum
  • C Medulla oblongata
  • D Spinal cord
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Question 5:
A fundamental similarity between nervous and hormonal system is that both
  • A Involve chemical transmission
  • B Have widespread effects
  • C Shed chemicals into the blood stream
  • D Evoke rapid responses
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