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5 marksNervous Co-ordination

CAPE Biology Unit 2 · 2010 · Paper 2 · Question 5(a)(i)

Nervous co-ordination and hormonal control.

Use an annotated diagram ONLY to describe the structure of a motor neurone.

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  1. 5(a)(ii)A farmer has been exposed to an insecticide that inhibits the enzymatic breakdown of acetylcholine. Explain why this causes muscular twitching and spasms in…[4 marks]
  2. 5(b)(i)Outline TWO differences between hormonal and nervous control in animals.[2 marks]
  3. 5(b)(ii)With reference to diabetes mellitus, explain TWO ways in which a malfunction in hormone activity could lead to disease.[4 marks]

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