DP Biology (first assessment 2025)

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Question 21M.2.HL.TZ1.a.ii

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.2.HL.TZ1.a.ii
Level HL Paper 2 Time zone TZ1
Command term Identify Question number a.ii Adapted from N/A
a.ii.
[Maximum mark: 1]
21M.2.HL.TZ1.a.ii

Identify the root length, as a percentage of the control, resulting from a ZDV concentration of 400 μmol.

[1]

Markscheme

24 % ✔

Allow answers in the range 23 %–25 %.

Examiners report

Part (ii) was better answered than part (i) as many answers provided were outside the acceptable range of answers.

Syllabus sections