| Date | November 2013 | Marks available | 2 | Reference code | 13N.3.SL.TZ0.5 |
| Level | Standard level | Paper | Paper 3 | Time zone | TZ0 |
| Command term | State | Question number | 5 | Adapted from | N/A |
Question
Label the following diagram of the side view of the human elbow joint.
State the function of structures I and II.
I:
II:
Markscheme
\(\left. {\begin{array}{*{20}{l}} {{\text{I: humerus;}}} \\ {{\text{II: cartilage;}}} \end{array}} \right\}{\text{ (need both)}}\)
I: insertion/anchorage for attachment of muscle / acts as lever;
II: decrease friction / acts as a cushion/shock absorber;
Examiners report
It was surprising the large number of candidates who could not correctly identify the humerus and cartilage in the diagram of the elbow joint.
Many candidates also did not get marks for this section as they could not clearly state the function of the bone or of cartilage. Insertion/anchorage for attachment of muscle / acts as lever; seldom give marks for I; often vague such as ‘gives structure to arm’.
