| Date | May 2016 | Marks available | 4 | Reference code | 16M.3.SL.TZ0.12 |
| Level | Standard level | Paper | Paper 3 | Time zone | TZ0 |
| Command term | Explain | Question number | 12 | Adapted from | N/A |
Question
Explain, with reference to one example, how a polluted ecosystem can be restored through bioremediation.
Markscheme
Bioremediation is the use of microorganisms to metabolize toxins to remove them from the environment
Specific area or ecosystem affected by pollution
Name of pollutant
Source of pollutant
Identity of microorganism used
Manner in which microorganism makes use of pollutant
Supporting steps technicians have to undertake
Examiners report
Most candidates scored marks in explaining bioremediation.
Syllabus sections
Option B: Biotechnology and bioinformatics » Option B: Biotechnology and bioinformatics (Core topics) » B.3 Environmental protection
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