DP Biology (last assessment 2024)

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Question 23M.1.SL.TZ2.13

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1.SL.TZ2.13
Level SL Paper 1 Time zone TZ2
Command term Question number 13 Adapted from N/A
13.
[Maximum mark: 1]
23M.1.SL.TZ2.13

Which graph represents the action spectrum for a green plant receiving only blue light?

 

[1]

Markscheme

B

Examiners report

This question required the candidates to identify which graph represents the action spectrum of a plant only receiving blue light. Students are required to know the wavelengths of visible light. As green light is reflected by a green plant there would be no photosynthesis in the central wavelengths of the visible light spectrum leaving only one possible answer.

Syllabus sections