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5 marksNervous Co-ordination

CAPE Biology Unit 2 · 2012 · Paper 2 · Question 5(a)(ii)

Outline the MAIN steps in the chemical transmission of an action potential across a synapse (no diagrams required).

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  1. 5(a)(i)Explain what is meant by the term 'synaptic transmission'.[2 marks]
  2. 5(b)(i)Outline the TWO MAJOR functions of the human kidney.[2 marks]
  3. 5(b)(ii)Discuss the significance of ultrafiltration, selective re-absorption and secretion in relation to the two major functions of the kidney stated in (b)(i).[6 marks]

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