Biology 0610 · IGCSE · Physical digestion

Physical digestion — practice question

Red pandas, Ailurus fulgens, and humans share a comparable pattern of teeth. Fig. 1.1 shows a cross-section through one tooth of a red panda. Fig. 1.2 shows the side view of the lower jaw of a red panda.
(a(i))[3]

State the names of the structures marked A to F in Fig. 1.1 and Fig. 1.2.

(a(ii))[1]

State the type of digestion responsible for breaking large pieces of food down.

(b(i))[1]

State the type of substance released by the bacteria during respiration that causes tooth decay.

(b(ii))[2]

State the names of the two parts of a tooth that are dissolved by the substance released by bacterial respiration.

(c)[1]

Suggest the component of a human diet that results in teeth decaying because of bacterial respiration.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: A corresponds to dentine.

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