Biology 0610 · IGCSE · Digestive system

Digestive system — practice question

Fig. 1.1 presents part of the human digestive system.
(a(i))[2]

From the label lines and the letters on Fig. 1.1, identify: • the organ that produces bile and place label A there • the organ that stores bile and place label B there.

(a(ii))[2]

Describe what physical digestion is.

(a(iii))[2]

State two locations in the body where physical digestion happens.

(b(i))[4]

Complete the sentences concerning fat digestion. Bile is released into the [BLANK] in the digestive system. Bile increases the surface area of fats and oils. This is called [BLANK]. This increase in surface area increases the rate of [BLANK] digestion using the enzyme [BLANK].

(b(ii))[1]

State the names of the products formed in fat digestion.

(c)[2]

Explain how bile helps trypsin break down protein.

Worked solution & mark scheme

This 13-mark question has a full step-by-step worked solution and mark scheme. One marking point: A is labelled liver

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