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Excretion and Homeostasis · CSEC Human and Social Biology

62 past-paper questions on Excretion and Homeostasis, part of Section B: Life Processes, from every CSEC Human and Social Biology paper on Quelpr.

Practise Excretion and Homeostasis
  1. 3(a)2 marks· CSEC Human and Social Biology · 2021 · Paper 2Identify EACH structure labelled A and B in Figure 2.
  2. 3(b)2 marks· CSEC Human and Social Biology · 2021 · Paper 2Complete the paragraph describing homeostatic regulation by selecting the TWO correct phrases from the provided box.
  3. 3(d)(i)2 marks· CSEC Human and Social Biology · 2021 · Paper 2Explain why the friends experienced frequent urination.
  4. 3(d)(ii)2 marks· CSEC Human and Social Biology · 2021 · Paper 2Explain why the friends experienced extreme thirst.
  5. 3(e)(i)1 mark· CSEC Human and Social Biology · 2021 · Paper 2State the effect that drinking alcoholic beverages would have on Pedro's blood glucose levels.
  6. 3(e)(ii)2 marks· CSEC Human and Social Biology · 2021 · Paper 2Explain how Pedro's body would normally respond to eliminate the effect stated in (e)(i).
  7. 11(a)2 marks· CSEC Human and Social Biology · January 2008 · Paper 2Define the term 'homeostasis' and explain its significance in humans.
  8. 11(b)3 marks· CSEC Human and Social Biology · January 2008 · Paper 2Explain the meaning of 'homeothermy' and identify the principal organ involved in its regulation.
  9. 11(c)5 marks· CSEC Human and Social Biology · January 2008 · Paper 2Suggest FIVE health complications associated with poorly controlled blood glucose levels.
  10. 11(d)10 marks· CSEC Human and Social Biology · January 2008 · Paper 2Explain how the body regulates blood glucose levels following a high-carbohydrate meal.
  11. 2(b)(i)1 mark· CSEC Human and Social Biology · January 2009 · Paper 2State whether it is normal for a healthy person to have sugar in their urine.
  12. 2(b)(ii)2 marks· CSEC Human and Social Biology · January 2009 · Paper 2Describe the process of ultrafiltration in the kidney tubules/nephron.
  13. 2(b)(iii)1 mark· CSEC Human and Social Biology · January 2009 · Paper 2Name the process by which glucose is selectively reabsorbed into the blood within the kidney tubules.
  14. 2(b)(iv)1 mark· CSEC Human and Social Biology · January 2009 · Paper 2Name one common disease Mr Douglas may suffer from based on the presence of sugar in his urine.
  15. 6(b)(ii)2 marks· CSEC Human and Social Biology · January 2009 · Paper 2State what happens within the body to the excess end-product of carbohydrate digestion.
  16. 7(a)3 marks· CSEC Human and Social Biology · January 2009 · Paper 2Define the term 'homoeostasis' and provide one relevant example in the human body.
  17. 7(b)(i)3 marks· CSEC Human and Social Biology · January 2009 · Paper 2Describe the trend shown in the graph of Figure 4 relating blood glucose concentration to time elapsed after breakfast.
  18. 7(b)(ii)4 marks· CSEC Human and Social Biology · January 2009 · Paper 2Identify the hormone responsible for decreasing blood glucose levels shown in Figure 4, and explain its mechanism of action.
  19. 5(a)(i)2 marks· CSEC Human and Social Biology · January 2010 · Paper 2Use a single square bracket ( [ ) on Figure 4 to label EACH of the following layers of the skin: a) D for the dermis, b) E for the epidermis.
  20. 5(a)(ii)1 mark· CSEC Human and Social Biology · January 2010 · Paper 2Identify the part labelled A in Figure 4.
  21. 5(b)(i)2 marks· CSEC Human and Social Biology · January 2010 · Paper 2Explain how Dwight's skin causes this flushed appearance.
  22. 5(b)(ii)2 marks· CSEC Human and Social Biology · January 2010 · Paper 2Dwight goes to a closed room with a fan to cool down after the game. Why does he take a long time to cool down even though he is sweating?
  23. 5(c)2 marks· CSEC Human and Social Biology · January 2010 · Paper 2Give TWO examples of how the kidney maintains balance in the human body.
  24. 5(d)1 mark· CSEC Human and Social Biology · January 2010 · Paper 2Dwight drank a lot of water during the football game. Explain why this excess water did NOT pass out as urine.
  25. 11(a)(i)2 marks· CSEC Human and Social Biology · January 2011 · Paper 2Explain what is 'diabetes mellitus'.
  26. 11(a)(ii)2 marks· CSEC Human and Social Biology · January 2011 · Paper 2Name the TWO types of diabetes mellitus.
  27. 11(a)(iii)1 mark· CSEC Human and Social Biology · January 2011 · Paper 2Name the hormone which, when deficient, causes diabetes mellitus.
  28. 13(a)(i)3 marks· CSEC Human and Social Biology · January 2011 · Paper 2Identify the parts labelled A, B and C in Figure 7.
  29. 13(a)(ii)2 marks· CSEC Human and Social Biology · January 2011 · Paper 2State the function of EACH of the parts labelled A and B in Figure 7.
  30. 13(b)8 marks· CSEC Human and Social Biology · January 2011 · Paper 2Explain how urine is formed, detailing the processes of ultrafiltration and selective reabsorption.
  31. 14(a)(i)2 marks· CSEC Human and Social Biology · January 2011 · Paper 2State what is meant by the term 'hormones'.
  32. 14(a)(ii)a)1 mark· CSEC Human and Social Biology · January 2011 · Paper 2State ONE function of adrenaline.
  33. 14(a)(ii)b)1 mark· CSEC Human and Social Biology · January 2011 · Paper 2State ONE function of glucagon.
  34. 14(a)(iii)1 mark· CSEC Human and Social Biology · January 2011 · Paper 2Name the gland that produces adrenaline.
  35. 4(a)(i)2 marks· CSEC Human and Social Biology · January 2012 · Paper 2Define what is meant by 'homeostasis'.
  36. 4(a)(ii)3 marks· CSEC Human and Social Biology · January 2012 · Paper 2Define 'negative feedback mechanism' and provide ONE physiological example.
  37. 4(b)(i)1 mark· CSEC Human and Social Biology · January 2012 · Paper 2Define the term 'excretion'.
  38. 4(b)(ii)4 marks· CSEC Human and Social Biology · January 2012 · Paper 2Referring to Figure 4, explain the functioning of the Bowman's capsule, proximal convoluted tubule, loop of Henlé, and distal convoluted tubule when a person consumes excess water.
  39. 4(b)(iii)1 mark· CSEC Human and Social Biology · January 2012 · Paper 2Describe how the colour of urine changes when consuming large amounts of water compared to drinking very little water.
  40. 3(a)(i)2 marks· CSEC Human and Social Biology · January 2014 · Paper 2Name the parts labelled A and B in Figure 6.
  41. 3(a)(ii)2 marks· CSEC Human and Social Biology · January 2014 · Paper 2State ONE function of EACH of the parts labelled A and B.
  42. 3(b)2 marks· CSEC Human and Social Biology · January 2014 · Paper 2Name ONE excretory organ other than the kidney, and identify the substance it excretes.
  43. 3(c)(i)2 marks· CSEC Human and Social Biology · January 2014 · Paper 2Based on the diagram in Figure 7, explain why a partially permeable membrane is needed in renal dialysis.
  44. 3(c)(ii)2 marks· CSEC Human and Social Biology · January 2014 · Paper 2Explain why the dialysis fluid must have approximately the same glucose concentration as the patient's blood.
  45. 3(c)(iii)5 marks· CSEC Human and Social Biology · January 2014 · Paper 2Explain how the hypothalamus would control the water content of the blood when blood solute concentration is high, assuming normal kidney function.
  46. 3(b)4 marks· CSEC Human and Social Biology · January 2016 · Paper 2Complete Table 2 by providing the missing information regarding the secretion triggers and actions of glucagon and insulin.
  47. 3(c)(i)3 marks· CSEC Human and Social Biology · January 2016 · Paper 2Identify the pituitary hormone that is no longer secreted and suggest TWO physiological effects this will cause in Vonrick's body.
  48. 5(b)4 marks· CSEC Human and Social Biology · January 2017 · Paper 2Suggest two signs or symptoms Peter might experience, and two ways he can manage the disease.
  49. 5(b)(i)4 marks· CSEC Human and Social Biology · January 2018 · Paper 2Cindy was diagnosed with Type II diabetes mellitus. Explain TWO differences between Type I and Type II diabetes.
  50. 5(b)(ii)5 marks· CSEC Human and Social Biology · January 2018 · Paper 2Outline FIVE effects of uncontrolled diabetes.
  51. 2(a)(i)3 marks· CSEC Human and Social Biology · May/June 2009 · Paper 2Name the endocrine glands labelled A, B, and C in Figure 2.
  52. 2(a)(ii)3 marks· CSEC Human and Social Biology · May/June 2009 · Paper 2Explain why the pancreas is considered as BOTH an endocrine gland and an exocrine gland.
  53. 2(b)(i)1 mark· CSEC Human and Social Biology · May/June 2009 · Paper 2Identify the hormone produced by the pancreas that is likely to be deficient in individuals suffering from diabetes mellitus.
  54. 2(b)(ii)3 marks· CSEC Human and Social Biology · May/June 2009 · Paper 2Explain how insulin functions to lower blood glucose levels.
  55. 14(e)4 marks· CSEC Human and Social Biology · May/June 2009 · Paper 2Explain how vasodilation and vasoconstriction of skin blood vessels regulate body temperature.
  56. 3(c)(i)4 marks· CSEC Human and Social Biology · May/June 2013 · Paper 2Explain the role of the pancreas in the development of diabetes mellitus resulting from consumption of excessive carbohydrates and fats.
  57. 4(d)(i)3 marks· CSEC Human and Social Biology · May/June 2015 · Paper 2Using Figure 3, identify which individual is most likely suffering from diabetes mellitus and explain your choice.
  58. 4(a)2 marks· CSEC Human and Social Biology · May/June 2017 · Paper 2Define the term 'homeostasis'.
  59. 4(b)4 marks· CSEC Human and Social Biology · May/June 2017 · Paper 2In the table provided, name two organs involved in homeostasis and identify one excretory product eliminated by each organ.
  60. 4(c)(i)2 marks· CSEC Human and Social Biology · May/June 2017 · Paper 2Explain the hormonal mechanism that facilitates the uptake of glucose into body cells following digestion of carbohydrates.
  61. 4(c)(ii)2 marks· CSEC Human and Social Biology · May/June 2017 · Paper 2By 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.
  62. 4(c)(iii)1 mark· CSEC Human and Social Biology · May/June 2017 · Paper 2After consuming a large meal rich in carbohydrates and fats, state what happens to the excess glucose absorbed into his body.

Related topics in Section B: Life Processes