| Date | May 2017 | Marks available | 1 | Reference code | 17M.1.SL.tz0.14 |
| Level | Standard Level | Paper | Paper 1 | Time zone | time zone 0 |
| Command term | Which | Question number | 14 | Adapted from | N/A |
Question
Which type of process is taking place when ATP is converted to ADP and phosphate?
I. Metabolism
II. Anabolism
III. Catabolism
A. I only
B. I and II only
C. III only
D. I and III only
Markscheme
D
Examiners report
Second most difficult question. Answers were evenly split between options C and D. D was the correct answer, recognising that both metabolism and catabolism as taking place when ATP is converted to ADP and phosphate. Those selecting option C did not recognise the role of metabolism.
