Cambridge IGCSE Biology practice

Paper 3 structured question: Xylem and phloem

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Paper

Marks

Topic

Xylem and phloem

Exam-style question

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Paper 3Theory (Core)2 marks

Cross-section of a non-woody dicot root

Diagram Description

A diagram shows a cross-section of a non-woody dicot root with a star-shaped central region and tissues arranged around it.

a
Identify the tissue labelled X in the centre of the root cross-section.
Your answer
Aim for approximately 1 distinct marking point.
[1]
b
Identify the tissue labelled Y located between the arms of the star-shaped tissue.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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Paper 3Theory (Core)2 marks

Diagram Description

A diagram shows a cross-section of a non-woody dicot stem with vascular bundles arranged in a ring. Each bundle has two distinct tissues.

a
Identify the tissue labelled A on the inner side of the vascular bundle.
Your answer
Aim for approximately 1 distinct marking point.
[1]
b
Identify the tissue labelled B on the outer side of the vascular bundle.
Your answer
Aim for approximately 1 distinct marking point.
[1]