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Explain the roles of the digestive system organs mentioned in 7.2.1, focusing on: (a) ingestion - taking in substances like food and drink, (b) digestion - breaking down food, (c) absorption - transferring nutrients from the intestines to the bloodstream, (d) assimilation - using nutrients in cells, and (e) egestion - eliminating undigested food as feces.

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Cambridge IGCSE BiologyHuman nutritionCore content

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Explain the roles of the digestive system organs mentioned in 7.2.1, focusing on: (a) ingestion - taking in substances like food and drink, (b) digestion - breaking down food, (c) absorption - transferring nutrients from the intestines to the bloodstream, (d) assimilation - using nutrients in cells, and (e) egestion - eliminating undigested food as feces

This point belongs to Digestive system, especially Digestive system outcomes.
You need to be able to explain the roles of the digestive system organs mentioned in 7.2.1, focusing on: (a) ingestion - taking in substances like food and drink, (b) digestion - breaking down food, (c) absorption - transferring nutrients from the intestines to the bloodstream, (d) assimilation - using nutrients in cells, and (e) egestion - eliminating undigested food as feces.
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Paper 3 structured question: Digestive system

Paper 3Theory (Core)3 marks

Description

Digestive Processes

The digestive system carries out several processes: ingestion, digestion, absorption, assimilation, and egestion. Each process involves specific organs and functions.

a
Describe the role of ingestion in the digestive system.
Your answer
Aim for approximately 1 distinct marking point.
[1]
b
Describe the role of absorption in the digestive system.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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Related learning objectives

Recognize the primary organs of the digestive system in diagrams and images, including the alimentary canal (mouth, esophagus, stomach, small intestine - duodenum and ileum, and large intestine - colon, rectum, anus) and associated organs (salivary glands, pancreas, liver, and gall bladder).
Digestive system outcomes

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