| Date | May 2019 | Marks available | 1 | Reference code | 19M.1.SL.tz0.6 |
| Level | Standard Level | Paper | Paper 1 | Time zone | time zone 0 |
| Command term | Question number | 6 | Adapted from | N/A |
Question
How does an increased erythrocyte level benefit an athlete?
A. By increasing the oxygen carrying capacity of the blood
B. By decreasing the capacity of the blood to clot in case of an injury
C. By increasing the ability of the body to fight infection
D. By decreasing viscosity of the blood
Markscheme
A
Examiners report
Very low-difficulty question (84.09 % correct) a simple recall question with a low discrimination index. The fourth easiest question on the paper.
