| Date | November 2010 | Marks available | 3 | Reference code | 10N.3.SL.TZ0.5 |
| Level | Standard level | Paper | Paper 3 | Time zone | TZ0 |
| Command term | Label | Question number | 5 | Adapted from | N/A |
Question
Label the parts of the following micrograph of the striated muscle.
I ..........................................................
II .........................................................
III ........................................................
Markscheme
I. thick filament / myosin;
II. Z line;
III. A/dark band;
Examiners report
Surprisingly few candidates were able to correctly label the micrograph of striated muscle. They confused myosin with actin and the dark band/A line with the sarcomere.
