Biology 0610 · IGCSE · Digestive system

Digestive system — practice question

A number of processes take place in the alimentary canal.
(a(i))[5]

The boxes on the left-hand side list the names of processes that happen in the alimentary canal. The boxes on the right-hand side give descriptions of processes that happen in the alimentary canal. Draw five straight lines to connect each process to its description. The processes shown are: absorption, chemical digestion, egestion, ingestion, mechanical digestion. The descriptions shown are: breaking food down into smaller pieces; breaking large, insoluble molecules down into small, soluble molecules; movement of digested food molecules into body cells; movement of small food molecules and ions into the bloodstream; passing out of food that has not been digested or absorbed from the body; taking substances into the body.

(a(ii))[1]

State the name of one digested food molecule that is absorbed.

(b(i))[1]

State what type of pathogen is responsible for cholera.

(b(ii))[1]

Describe the meaning of the term diarrhoea.

(b(iii))[2]

Outline how diarrhoea is treated.

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: Ingestion → taking substances into the body

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