Biology 0610 · IGCSE · Enzymes

Enzymes — practice question

Pepsin is a protease enzyme present in the alimentary canal.
(a(i))[1]

Name the product produced when protease enzymes digest proteins.

(a(ii))[1]

State the organ in the alimentary canal into which pepsin is secreted.

(b(i))[2]

The biologist made sure that all the cooked egg-white cubes were exactly the same size. Suggest why.

(b(ii))[2]

Describe how temperature can be kept constant.

(c)[1]

Predict the optimum pH for trypsin.

(d)[6]

Describe in detail how enzymes work, using other digestive enzymes as examples.

Worked solution & mark scheme

This 13-mark question has a full step-by-step worked solution and mark scheme. One marking point: amino acids

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