| Date | November 2009 | Marks available | 1 | Reference code | 09N.1.HL.TZ0.9 |
| Level | Higher level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Question number | 9 | Adapted from | N/A |
Question
Which equation shows a chemical reaction that occurs during anaerobic cell respiration?
Markscheme
A
Examiners report
Surprisingly this turned out to be the most difficult question in the exam. There were an equal number of candidates choosing options A, B and C. Many good candidates got the correct answer.
Syllabus sections
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