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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Biological molecules

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Biological molecules

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Paper 3Theory (Core)3 marks

Understanding the composition of fats and oils.

Description

Composition of Fats and Oils

Fats and oils are important energy sources and are made from specific components.

  1. a

    Explain how fats are formed from their components.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Biological molecules

Paper 3Theory (Core)2 marks

Description

Large Biological Molecules

Large molecules such as starch, glycogen, cellulose, proteins, and fats are crucial for various biological functions.

  1. a

    Describe the relationship between glucose and starch.

    Aim for approximately 2 distinct marking points.

    [2]