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Cambridge IGCSE Biology practice

Paper 3 structured question: Photosynthesis

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3

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2

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Photosynthesis

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Paper 3Theory (Core)2 marks

Plants require various mineral ions for healthy growth and development.

Description

Mineral ions in plants

Two important mineral ions for plants are nitrate ions and magnesium ions. Nitrate ions are involved in amino acid production, while magnesium ions are involved in chlorophyll synthesis.

  1. a

    Explain why nitrate ions are important for plants.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Photosynthesis

Paper 3Theory (Core)2 marks

Description

Mineral ions in plants

Two important mineral ions for plants are nitrate ions and magnesium ions. Nitrate ions are involved in amino acid production, while magnesium ions are involved in chlorophyll synthesis.

  1. b

    Explain why magnesium ions are important for plants.

    Aim for approximately 2 distinct marking points.

    [2]