Date | May 2019 | Marks available | 1 | Reference code | 19M.1.HL.TZ2.15 |
Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
Command term | Identify | Question number | 15 | Adapted from | N/A |
Question
The diagram shows compounds in the Krebs cycle labelled as X, Y and Z.
[Source: © International Baccalaureate Organization 2019]
How many carbon atoms are there in Y and in the acetyl group of acetyl CoA?
Markscheme
A
Examiners report
This question was easy and discriminated very well.
Syllabus sections
Additional higher level » Topic 8: Metabolism, cell respiration and photosynthesis » 8.2 Cell respiration
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