| Date | May 2015 | Marks available | 1 | Reference code | 15M.1.HL.TZ2.12 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Identify | Question number | 12 | Adapted from | N/A |
Question
How can the rate of photosynthesis be measured?
I. By the amount of oxygen produced
II. By the increase in biomass
III. By the amount of carbon dioxide produced
A. I only
B. I and II only
C. I and III only
D. I, II and III
Markscheme
B
Examiners report
The answers to the question do not reflect a measurement of a rate of reaction, as time is not included. As none of the answers include the time, it is implied in the question.
Syllabus sections
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