Learning objective

Clarify how the loss of water vapor is connected to the large internal surface area from the air spaces between mesophyll cells and the size and number of stomata.

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

Exam focus

Cambridge IGCSE BiologyTransport in plantsSupplement content

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Understand this objective

Quick explanation

This point belongs to Transpiration, especially Transpiration outcomes.
You need to be able to clarify how the loss of water vapor is connected to the large internal surface area from the air spaces between mesophyll cells and the size and number of stomata.
The key ideas to know are Explain.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Explain

Why it matters

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

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Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 4Theory (Extended)3 marks

Diagram Description

A diagram shows mesophyll cells separated by air spaces inside a leaf, with stomata on the leaf surface.

a
Explain how the large internal surface area from the air spaces between mesophyll cells is connected to water vapor loss from the leaf.
Your answer
Aim for approximately 3 distinct marking points.
[3]

Revision notestopic notes

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