| Date | May 2016 | Marks available | 2 | Reference code | 16M.2.SL.tz0.4 |
| Level | Standard Level | Paper | Paper 2 | Time zone | time zone 0 |
| Command term | Explain | Question number | 4 | Adapted from | N/A |
Question
Comment on the variability of diastolic blood pressure during dynamic and static exercise.
Explain the difference between adult males and females in maximal oxygen consumption.
Markscheme
diastolic BP remains constant during dynamic exercise✔
diastolic BP rises during static exercise✔
<absolute> VO2 values are considerably lower in aged-matched females ‹15–30 % below male levels on average›✔
female <absolute> VO2 values are considerably lower due to size differences
OR
gender differences are related to body composition due to non-oxygen using body fat in females✔
when compared in relative terms active, healthy adult females have lower VO2 max than males✔
gender differences are also related to greater hemoglobin concentration in males✔
Examiners report
Overall most students confused the question to rest and exercise. Most students were able to access 1 mark by stating that static exercise causes diastolic pressure rise. However very few students were able to identify that during dynamic exercise diastolic pressure remains constant.
Overall most pupils were able to achieve 1 mark but struggled to explain the cause for the difference between males and females.
