| Date | May 2012 | Marks available | 2 | Reference code | 12M.3.SL.TZ2.5 |
| Level | Standard level | Paper | Paper 3 | Time zone | Time zone 2 |
| Command term | Describe | Question number | 5 | Adapted from | N/A |
Question
The following is a diagram of a sarcomere.
Label parts I, II, III and IV
I. ..................................................................
II. ..................................................................
III. ..................................................................
IV. ..................................................................
Markscheme
Award [1] for any two of the following correctly identified.
I. myosin head/filament;
II. actin filament;
III. dark band/A band;
IV. Z line;
Examiners report
Most answers were correct.
