Learning objective

Identify sources in plants as the regions that produce and release sucrose or amino acids, and identify sinks as the regions that utilize or store these substances.

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Exam focus

Cambridge IGCSE BiologyTransport in plantsSupplement content

Study support

Understand this objective

Quick explanation

This point belongs to Translocation, especially Translocation outcomes.
You need to be able to identify sources in plants as the regions that produce and release sucrose or amino acids, and identify sinks as the regions that utilize or store these substances.
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 Translocation outcomes to exam-style questions, flashcards, and revision notes for Translocation.

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Practice Questions7 linked questions

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Paper 4Theory (Extended)3 marks

Description

Sources are regions in plants that produce and release sucrose or amino acids. Sinks are regions that use or store these substances.

a
Identify a source in a plant and state what it produces and releases.
Your answer
Aim for approximately 1 distinct marking point.
[1]
b
Identify a sink in a plant and describe its role.
Your answer
Aim for approximately 2 distinct marking points.
[2]

Revision notestopic notes

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