Date | May 2012 | Marks available | 1 | Reference code | 12M.1.HL.TZ1.37 |
Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
Command term | Outline | Question number | 37 | Adapted from | N/A |
Question
What is the function of the synovial fluid in the elbow joint?
A. It removes waste products from the surrounding tissue.
B. It provides glucose and oxygen to the cartilage.
C. It lubricates the joint and prevents friction.
D. It prevents the bone from becoming brittle.
Markscheme
C
Examiners report
Some teachers criticised 37 on the grounds that synovial fluid both lubricates the joint and supplies glucose and oxygen to the cartilage. Nearly 95% of candidates chose the former answer, which was the expected one. As a result this question hardly discriminated between the candidates.