Question 3
(3) Figure 3 on the right shows a typical human digestive system.

(i) Explain the role of parts 2 and 4 in a healthy digestive system? [2 marks]
(ii) Explain how a blockage in the tube connecting structures 2 and D affect complete digestion of fats? [1 mark]
(iii) Considering your answer in (i) and (ii), construct a bar graph to show the amount of undigested fats in the alimentary canal (structures A, B, C, D, and E). [4 marks]

(i) Explain the role of parts 2 and 4 in a healthy digestive system? [2 marks]
(ii) Explain how a blockage in the tube connecting structures 2 and D affect complete digestion of fats? [1 mark]
(iii) Considering your answer in (i) and (ii), construct a bar graph to show the amount of undigested fats in the alimentary canal (structures A, B, C, D, and E). [4 marks]