| Date | May 2010 | Marks available | 1 | Reference code | 10M.1.SL.TZ2.7 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | State | Question number | 7 | Adapted from | N/A |
Question
What is a role of sulfur in living organisms?
A. Formation of proteins
B. Formation of carbohydrates
C. Formation of teeth
D. Transmission of nerve impulses
Markscheme
A
Examiners report
This question turned out to be an excellent discriminator where most good candidates mentioned that sulfur is used in the synthesis of proteins and many of the weak candidates believed it took part in the transmission of nerve impulses.
