Cambridge IGCSE Chemistry practice

Paper 3 structured question: Air quality and climate

Try the question first, then check the answer and practise the same topic again.

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Paper

Marks

Topic

Air quality and climate

Exam-style question

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Paper 3Theory (Core)3 marks

The role of chlorophyll in photosynthesis is crucial.

Description

Chlorophyll absorbs light energy, which is essential for the photosynthesis process.

a
Describe the role of chlorophyll in photosynthesis.
Your answer
Aim for approximately 3 distinct marking points.
[3]

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Paper 3Theory (Core)1 marks

Description

Photosynthesis converts light energy into chemical energy stored in glucose, using carbon dioxide and water as raw materials.

a
State the two main products of photosynthesis.
Your answer
Aim for approximately 1 distinct marking point.
[1]