A trainee firefighter completes a 42-day physical training programme.
The table shows data for the trainee at the start of the programme and the mean daily energy values during the programme.
| Measurement | Value |
|---|---|
| body mass at the start | 84.0 kg |
| height | 1.75 m |
| mean daily energy intake | 11 400 kJ11\,400\ \text{kJ}11400 kJ |
| mean daily energy use | 12 200 kJ12\,200\ \text{kJ}12200 kJ |
Assume that every energy deficit of 30 000 kJ30\,000\ \text{kJ}30000 kJ reduces the trainee's body mass by 1.0 kg.
The table shows how BMI is used to classify body mass.
| BMI | Category |
|---|---|
| below 18.5 | underweight |
| 18.5 to 24.9 | healthy weight |
| 25.0 to 29.9 | overweight |
| 30.0 and above | obese |
Calculate the BMI of the trainee at the end of the programme.
Use the equation BMI=mass (kg)(height (m))2\displaystyle \mathrm{BMI}=\frac{\mathrm{mass\,(kg)}}{\left(\mathrm{height\,(m)}\right)^2}BMI=(height(m))2mass(kg).
Give your answer to 1 decimal place.
Use the table to explain why the trainee's BMI category does not show the full effect of the programme on the trainee's health.
102 exam-style questions on Edexcel GCSE Biology 5.4 Non-communicable diseases, covering 5.4.1 Interaction of factors in non-communicable disease, 5.4.2 Lifestyle factors and non-communicable disease, and 5.4.3 Treatments for cardiovascular disease. Each one has a worked solution and a mark scheme showing where the marks go.