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Cambridge IGCSE Combined Science practice

Paper 4 structured question: Active transport

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Active transport

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Paper 4Theory (Extended)4 marks

Active transport is essential for the uptake of nutrients in plants.

Description

Active Transport in Root Hair Cells

Root hair cells absorb minerals from the soil using active transport, which allows them to take in nutrients even when soil concentrations are low.

  1. a

    Discuss the significance of active transport in root hair cells.

    Aim for approximately 4 distinct marking points.

    [4]

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Paper 4 structured question: Active transport

Paper 4Theory (Extended)2 marks

Description

Active Transport Overview

Active transport is a cellular process that moves ions and molecules against their concentration gradient, requiring energy.

  1. a

    Explain how active transport differs from passive transport.

    Aim for approximately 2 distinct marking points.

    [2]