IB Biology HL 3.2.9 Stem Vascular Tissues Question Bank

Practise IB Biology HL 3.2.9 by identifying xylem and phloem in stem sections and explaining how vascular bundles are arranged in dicotyledonous plants.

Exam points

Identify xylem and phloem in stem micrographs using vascular-bundle position and structure.
Describe dicot stem vascular-bundle arrangement and relate each tissue to its function.

[Maximum number: 2]

The micrograph shows a section through the root of a dicotyledonous plant $(\times 400)$ .

Figure for Question B3.2.9—Stem tissue distribution question 1 — IB Biology HL

Describe the distribution of vascular tissues in the stem of dicotyledonous plants.

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B3.2.9—Stem tissue distribution question 1