DP Chemistry (last assessment 2024)

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Question 18N.3.sl.TZ0.5c

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Date November 2018 Marks available [Maximum mark: 2] Reference code 18N.3.sl.TZ0.5c
Level sl Paper 3 Time zone TZ0
Command term Explain Question number c Adapted from N/A
c.
[Maximum mark: 2]
18N.3.sl.TZ0.5c

Dietary recommendations are made by scientists.

(c)

Explain how a xenobiotic is biomagnified.

[2]

Markscheme

cannot be metabolized/broken down

OR

not biodegradable

OR

accumulates in lipid/fat tissues ✔

 

increased concentration as one species feeds on another «in the food chain» ✔

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