Learning objective

Identify the main dietary sources and explain the significance of: (a) carbohydrates (b) fats and oils (c) proteins (d) vitamins, specifically C and D (e) mineral ions, specifically calcium and iron (f) fibre (roughage) (g) water.

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Exam focus

Cambridge IGCSE BiologyHuman nutritionCore content

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Quick explanation

This point belongs to Diet, especially Diet outcomes.
You need to be able to identify the main dietary sources and explain the significance of: (a) carbohydrates (b) fats and oils (c) proteins (d) vitamins, specifically C and D (e) mineral ions, specifically calcium and iron (f) fibre (roughage) (g) water.
The key ideas to know are Describe and State.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DescribeState

Why it matters

This objective helps connect Diet outcomes to exam-style questions, flashcards, and revision notes for Diet.

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Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 3Theory (Core)3 marks

Description

The table below lists some nutrients and their main functions in the human body.

a
Identify a dietary source of carbohydrates.
Your answer
Aim for approximately 1 distinct marking point.
[1]
b
Describe the importance of calcium in the diet.
Your answer
Aim for approximately 2 distinct marking points.
[2]

Revision notestopic notes

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