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Date May 2019 Marks available 1 Reference code 19M.1.HL.TZ2.39
Level Higher level Paper Paper 1 Time zone Time zone 2
Command term Identify Question number 39 Adapted from N/A

Question

The photomicrograph shows a section through the top of a plant shoot.

[Source: Charles Good: The Ohio State University at Lima]

 

What are the structures labelled X and Y?

Markscheme

D

Examiners report

In Topic 9.2 candidates had to study that mitosis and cell division in the shoot apex provide cells needed for extension of the stem and development of leaves.

Syllabus sections

Additional higher level » Topic 9: Plant biology » 9.3 Growth in plants
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Additional higher level » Topic 9: Plant biology
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