(a(i))[2]
Explain why it matters that large insoluble molecules are broken down by chemical digestion.
(a(ii))[1]
State the name of the substance that acts as the solvent for most molecules after they have been digested by enzymes.
(b)[6]
Describe and explain the functions of the two protease enzymes, A and B, in the alimentary canal. Use evidence from Fig. 2.1 to support your answer.
(c)[1]
State the precise location of maltase in the small intestine.