DP Chemistry (last assessment 2024)

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Question 18M.3.sl.TZ1.c.iii

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Date May 2018 Marks available [Maximum mark: 2] Reference code 18M.3.sl.TZ1.c.iii
Level sl Paper 3 Time zone TZ1
Command term Outline Question number c.iii Adapted from N/A
c.iii.
[Maximum mark: 2]
18M.3.sl.TZ1.c.iii

Many drugs, including aspirin, penicillin, codeine and taxol, have been modified from compounds that occur naturally.

Outline two consequences of prescribing antibiotics such as penicillin unnecessarily.

[2]

Markscheme

Any two of:

leads to «bacterial» resistance/proportion of resistant bacteria increases

OR

leads to penicillinase-producing bacteria

damage to/contamination of bodies of water/ecosystems

destroys useful/beneficial bacteria

destroyed bacteria replaced by more harmful bacteria

 

Accept “endocrine disruptor”.

Do not accept “increased cost of developing antibiotics”.

[2 marks]

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