Fig. 2.1 shows the human alimentary canal together with the organs associated with it.
(a)[4]
Complete Table 2.1.
(b)[3]
Explain the role of hydrochloric acid in the alimentary canal.
(c)[1]
State a function of the region of the alimentary canal labelled 6 in Fig. 2.1.
(d)[6]
Describe how food taken in by humans is broken into smaller pieces and explain how this improves the efficiency of chemical digestion. You may refer to Fig. 2.1 in your answer.
Worked solution & mark scheme
This 14-mark question has a full step-by-step worked solution and mark scheme. One marking point: “amylase - salivary glands - 1 - starch - maltose” …