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2 marksExcretion and Homeostasis

CSEC Human and Social Biology · May/June 2017 · Paper 2 · Question 4(c)(i)

Kenrick consumes breakfast at 7:00 a.m. containing carbohydrates, protein, and fruit, and does not eat again until late afternoon.

Explain the hormonal mechanism that facilitates the uptake of glucose into body cells following digestion of carbohydrates.

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Other parts of this question

  1. 4(a)Define the term 'homeostasis'.[2 marks]
  2. 4(b)In the table provided, name two organs involved in homeostasis and identify one excretory product eliminated by each organ.[4 marks]
  3. 4(c)(ii)By 4:00 p.m., Kenrick's blood glucose is low. Explain the physiological process that occurs in his body to restore normal blood glucose levels.[2 marks]
  4. 4(c)(iii)After consuming a large meal rich in carbohydrates and fats, state what happens to the excess glucose absorbed into his body.[1 mark]
  5. 4(d)Explain how diet and physical exercise help prevent or manage one specified lifestyle-related chronic disease.[4 marks]

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