| Date | May 2011 | Marks available | 1 | Reference code | 11M.1.SL.TZ2.11 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 11 | Adapted from | N/A |
Question
Which process produces the most ATP per molecule of glucose?
A. Anaerobic respiration in a yeast cell
B. Aerobic respiration in a bacterial cell
C. Glycolysis in a human liver cell
D. The formation of lactic acid in a human muscle cell
Markscheme
B
Examiners report
There were a number of criticisms of this question as being confusing for candidates. Those at the grade award meeting considered these comments but felt that the question was appropriate, though candidates did find it challenging.
Syllabus sections
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