| Date | May 2013 | Marks available | 1 | Reference code | 13M.1.SL.TZ1.13 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 13 | Adapted from | N/A |
Question
What is the source of the oxygen released into the atmosphere in photosynthesis?
A. Glucose
B. Carbon dioxide
C. Chlorophyll
D. Water
Markscheme
D
Examiners report
N/A
Syllabus sections
Show 65 related questions
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