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A diet that is high in fat can lead to an increase in the total cholesterol levels in the blood - Edexcel - GCSE Biology - Question 6 - 2015 - Paper 1
Question 6
A diet that is high in fat can lead to an increase in the total cholesterol levels in the blood. The table shows the total cholesterol levels in the blood of a man, ... show full transcript
Worked Solution & Example Answer:A diet that is high in fat can lead to an increase in the total cholesterol levels in the blood - Edexcel - GCSE Biology - Question 6 - 2015 - Paper 1
Step 1
Calculate the percentage increase in total cholesterol level in the blood over this 10-year period.
Answer
To calculate the percentage increase in total cholesterol level, use the formula:
ext{Percentage Increase} = rac{ ext{Final Value} - ext{Initial Value}}{ ext{Initial Value}} imes 100 ewlineIn this case, the initial value (10 years ago) is 4.8 mmol per dm² and the final value (present day) is 6.0 mmol per dm².
Substituting the values:
ext{Percentage Increase} = rac{6.0 - 4.8}{4.8} imes 100 = rac{1.2}{4.8} imes 100 ewline = 25 ext{.}0 ext{%}Therefore, the correct answer is D. 25.0%.
Step 2
Explain why this man has been advised to eat mycoprotein rather than meat.
Answer
Mycoprotein is recommended as it is generally lower in saturated fat compared to meat. High saturated fat intake can lead to increased cholesterol levels, which may contribute to health issues such as heart disease. Mycoprotein provides a source of protein without significantly raising cholesterol levels, making it a healthier alternative for individuals looking to manage their cholesterol intake.