| Date | November 2017 | Marks available | 1 | Reference code | 17N.1.SL.TZ0.09 |
| Level | Standard level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Deduce | Question number | 09 | Adapted from | N/A |
Question
Three flasks were prepared for an analysis of the activity of amylase. At time zero, each of the substances indicated in the diagrams was added.
Which flask(s) could provide support for the hypothesis that heat denatures enzymes?
A. Flasks I and II after 15 minutes
B. Flasks II and III after 15 minutes
C. Flasks I and III after 15 minutes
D. Flask III at time zero and again after 15 minutes
Markscheme
C
Examiners report
[N/A]
Syllabus sections
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