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Cambridge IGCSE Biology practice

Paper 3 structured question: Photosynthesis

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Photosynthesis

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Paper 3Theory (Core)2 marks

Plants use carbohydrates produced in photosynthesis in different ways.

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Carbohydrate Uses

Glucose is produced in photosynthesis and can be converted into other carbohydrates such as sucrose and starch. Nectar contains sugars to attract pollinators.

  1. a

    State the carbohydrate transported in the phloem.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    State why plants produce nectar containing sugars.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 3 structured question: Photosynthesis

Paper 3Theory (Core)2 marks

Description

Carbohydrate Functions

Plants produce glucose during photosynthesis. This glucose can be used immediately or converted into other carbohydrates for various purposes.

  1. a

    State one use of starch in plants.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    Identify the carbohydrate used to build plant cell walls.

    Aim for approximately 1 distinct marking point.

    [1]