CAIE IGCSE Biology 7.2.2 Functions of the Organs Questions

Practise linking digestive organs to ingestion, digestion, absorption, assimilation and egestion in diagrams and process questions.

Exam points

order ingestion, digestion, absorption, assimilation and egestion as the sequence of human nutrition processes
distinguish absorption as movement of digested nutrients into blood from assimilation as uptake and use by cells
map ingestion, digestion, absorption and egestion to the relevant alimentary-canal organs and state their functions
identify digestive secretions and organ functions including stomach hydrochloric acid, bile production, gastric juice, amylase/trypsin sites and glucagon production
describe the carbohydrate pathway from ingestion through enzymatic digestion, intestinal absorption and assimilation in the liver

[Maximum number: 1]

Substances move between blood and tissues at various sites in the circulatory system of mammals.

State the name of the process in which products of digestion move into cells and are used to become part of the cells.

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