DP Biology (first assessment 2025)

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Question 23M.1A.SL.TZ2.28

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.SL.TZ2.28
Level SL Paper 1A Time zone TZ2
Command term Question number 28 Adapted from N/A
28.
[Maximum mark: 1]
23M.1A.SL.TZ2.28

The stem of a young plant is cut through and the cut end is immersed in water containing a red dye. The plant continues to transpire as normal. In what region of the stem would the red colour be visible soon after immersion?

[Source: Berkshire Community College Bioscience Image Library, 2014. Herbaceous Dicot Stem: Vascular Bundles Young
Helianthus. [image online] Available at: https://www.flickr.com/photos/146824358@N03/36834307513 [Accessed
4 October 2021]. Public domain.]

 

[1]

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