Quelpr
1 markCoordination and Control

CSEC Human and Social Biology · January 2011 · Paper 2 · Question 2(d)(ii)

Paul's thyroid gland produces insufficient thyroxine compared to his twin Paula.

Identify ONE effect of an overactive thyroid gland on a human adult.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 2(a)Complete the statement describing the components of the human nervous system using the words: motor, sensory, central, spinal, peripheral.[3 marks]
  2. 2(b)(i)Suggest the region of the brain that may have been damaged in Melissa.[1 mark]
  3. 2(b)(ii)Suggest the region of the brain that may have been damaged in Melissa's father.[1 mark]
  4. 2(c)(i)Write X on Figure 1 to show the hypothalamus.[1 mark]
  5. 2(c)(ii)Suggest ONE way bodily functions may be affected by a malfunctioning hypothalamus.[1 mark]
  6. 2(d)(i)Suggest how Paul's insufficient thyroxine production would affect his physical and mental development.[2 marks]

More practice: the rest of this paper · more Coordination and Control questions · all CSEC Human and Social Biology past papers