Learning objective

Discuss the significance of gas and solute diffusion in the functioning of living organisms.

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Exam focus

Cambridge IGCSE BiologyMovement into and out of cellsCore content

Study support

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Quick explanation

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

Key concepts

Describe

Why it matters

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

Revision tools

Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 3Theory (Core)2 marks

Description

Oxygen and carbon dioxide move in and out of cells by diffusion to support respiration and photosynthesis.

a
Describe how diffusion allows oxygen to enter cells.
Your answer
Aim for approximately 2 distinct marking points.
[2]

Revision notestopic notes

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