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An office worker and an Olympic swimmer were found to have the same BMI - Scottish Highers Human Biology - Question 7 - 2018

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An office worker and an Olympic swimmer were found to have the same BMI. They each weighed 105 kg and were 1.85 m in height. (a) (i) Calculate their BMI. Space for... show full transcript

Worked Solution & Example Answer:An office worker and an Olympic swimmer were found to have the same BMI - Scottish Highers Human Biology - Question 7 - 2018

Step 1

Calculate their BMI.

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Answer

To calculate BMI, we use the formula:

BMI=weight (kg)height (m)2BMI = \frac{\text{weight (kg)}}{\text{height (m)}^2}

Substituting the given values:

BMI=1051.85230.68BMI = \frac{105}{1.85^2} \approx 30.68

Thus, their BMI is approximately 30.68.

Step 2

Suggest why, after calculating their BMI, a health professional advised only the office worker to lose weight.

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Answer

The office worker likely has more body fat and less muscle mass compared to the Olympic swimmer. This difference in body composition means that even with the same BMI, the office worker may have a higher proportion of fat, which is associated with health risks. In contrast, the swimmer has more muscle, which is healthier and beneficial for athletic performance.

Step 3

Explain why this condition causes the blood glucose concentration to remain high.

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Answer

In Type 2 diabetes, the cells and receptors become less sensitive to insulin, which results in decreased ability to uptake glucose from the bloodstream. This insensitivity means that glucose cannot enter the cells efficiently, leading to elevated blood glucose levels. Additionally, the body may not convert glucose into glycogen for storage, further contributing to high blood glucose concentrations.

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