Biology 5090 · O Level · Absorption and assimilation
Absorption and assimilation — practice question
Digestion in the human alimentary canal happens through the action of enzymes. Each food group acts as the substrate for a particular enzyme.
(a)[6]
Fig. 3.1 contains diagrams showing how a particular enzyme breaks a substrate down into one or more end products. Diagram F in Fig. 3.1 has already been completed for you. Finish diagrams G and H in Fig. 3.1.
(b)[4]
Amino acids are the final products of protein digestion. Describe what happens to these amino acids from the stage of digestion until they arrive at the liver.
Worked solution & mark scheme
This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “amylase in Diagram G” …