DP Biology (last assessment 2024)

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Question 18M.3.SL.TZ2.a

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.3.SL.TZ2.a
Level SL Paper 3 Time zone TZ2
Command term Identify Question number a Adapted from N/A
a.
[Maximum mark: 1]
18M.3.SL.TZ2.a

Chromatography is a technique used to separate the components of a mixture. The photosynthetic pigments from three organisms were separated by thin layer chromatography: spinach (Spinacia oleracea), a red alga (Porphyra) and a brown alga (Fucus).

Identify a pigment found in all three organisms.

[1]

Markscheme

chlorophyll a
OR
β carotene

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