The graph below contains information about the body mass index (BMI) of Scottish children in 2009 - Scottish Highers Human Biology - Question 7 - 2015
Question 7
The graph below contains information about the body mass index (BMI) of Scottish children in 2009.
a) State the percentage of children aged 12 to 15 who had a BMI o... show full transcript
Worked Solution & Example Answer:The graph below contains information about the body mass index (BMI) of Scottish children in 2009 - Scottish Highers Human Biology - Question 7 - 2015
Step 1
State the percentage of children aged 12 to 15 who had a BMI of more than 30 in 2009.
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Answer
From the graph, the percentage of children aged 12 to 15 with a BMI above 30 is represented under the 'OBESE' category, which shows a percentage of 18%.
Step 2
Suggest reasons why the percentage of obese children increased between the ages of 2 and 15.
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Answer
As children get older, they tend to eat less 'healthy' food or have a higher fat diet. Additionally, they may have more sugar in their diet, and as they grow, they have the autonomy to choose what they eat. Furthermore, they often exercise less and carry out fewer physical activities.
Step 3
Explain how BMI is calculated.
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Answer
BMI is calculated by dividing a person's weight in kilograms by the square of their height in meters. The formula is given as:
ext{BMI} = rac{ ext{Weight (kg)}}{ ext{Height (m)}^2}
Step 4
Suggest how children could be encouraged to maintain a healthy BMI by use of the following processes.
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Answer
Identification: Use celebrities or role models to promote a healthy lifestyle and diet to children.
Internalisation: Utilize advertisements, media, and parents to persuade children to adopt a healthy lifestyle and diet, providing strong arguments or reasons for maintaining healthy eating habits and exercise.
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