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Learning objective

Discuss the significance of diffusion for gases and solutes in living organisms.

Read the explanation, check the common trap, then practise with flashcards and questions.

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  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE Combined ScienceMovement into and out of cellsCore content

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Quick explanation

Discuss the significance of diffusion for gases and solutes in living organisms

  • This point belongs to Diffusion, especially Diffusion outcomes.
  • You need to be able to discuss the significance of diffusion for gases and solutes in living organisms.
  • The key ideas to know are Describe and Discuss.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DescribeDiscuss

Why it matters

This objective helps connect Diffusion outcomes to exam-style questions, flashcards, and revision notes for Diffusion.

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Paper 3 structured question: Diffusion

Paper 3Theory (Core)3 marks

Description

Diffusion in Cells

Diffusion allows essential gases and nutrients to enter cells while enabling waste products to exit. This process is vital for maintaining cellular functions and homeostasis.

  1. a

    Explain the significance of diffusion in living organisms.

    Aim for approximately 3 distinct marking points.

    [3]
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Cambridge IGCSECombined Science resources