Biology 5090 · O Level · Absorption and assimilation
Absorption and assimilation — practice question
Proteins form a key part of the human diet. After protein molecules are digested, the digestion products are taken into the blood.
(a(i))[1]
State one main source of protein in the diet.
(a(ii))[4]
Describe the chemical digestion of proteins in named parts of the alimentary canal.
(a(iii))[1]
State where in the alimentary canal the products of digestion are absorbed into the blood.
(b)[4]
Describe the change in the absorption surface in a person affected by the disease and suggest ways in which the person may be affected by this change.
Worked solution & mark scheme
This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “meat / fish / eggs / dairy products / nuts / pulses” …