DP Biology (first assessment 2025)

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Question 19N.2.SL.TZ0.15b

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.2.SL.TZ0.15b
Level SL Paper 2 Time zone TZ0
Command term Outline Question number b Adapted from N/A
b.
[Maximum mark: 1]
19N.2.SL.TZ0.15b
(b)

Outline how plastic ingestion may lead to biomagnification in these marine species.

[1]

Markscheme

a. plastic broken down into microplastics to be able to enter the food chain ✔

b. plastic/microplastics become more concentrated at each trophic level ✔ 

Accept descriptions of biomagnification involving any of the species in the table.

Syllabus sections