Research shows that overweight people may develop Type 2 diabetes - Edexcel - GCSE Biology - Question 2 - 2015 - Paper 1
Question 2
Research shows that overweight people may develop Type 2 diabetes.
(a) Body Mass Index (BMI) can be used to identify people who are overweight.
BMI can be calculat... show full transcript
Worked Solution & Example Answer:Research shows that overweight people may develop Type 2 diabetes - Edexcel - GCSE Biology - Question 2 - 2015 - Paper 1
Step 1
Calculate the BMI for a person who has a mass of 77 kilograms and a height of 1.6 metres.
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Answer
To calculate the Body Mass Index (BMI), we use the formula:
BMI=height in metres×height in metresmass in kilograms
Substituting the values:
BMI=1.6×1.677=2.5677
Calculating this gives:
BMI = 30.08 (rounded to two decimal places).
Step 2
Describe how the scientific community would validate this research.
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Answer
The scientific community validates research through processes such as:
Peer Review: Research findings are submitted to scientific journals, where they undergo evaluation by other experts in the field before publication.
Attending Scientific Conferences: Researchers present their findings and methodologies, allowing for discussion and critiques from fellow scientists.
These processes enhance the credibility and reliability of the research.
Step 3
Use words from the box to complete the following sentences.
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Answer
Type 2 diabetes develops when a person becomes resistant to the hormone insulin.
This hormone is produced in the pancreas.
Step 4
Describe two ways a person with Type 2 diabetes can control their blood glucose levels without the use of hormones.
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A person with Type 2 diabetes can manage their blood glucose levels through:
Diet Carefully Regulated/Monitored: Following a diet that is low in carbohydrates and sugars can help to maintain stable blood sugar.
Physical Activity Undertaken/Exercise: Regular physical activity helps increase insulin sensitivity, which can assist in controlling blood glucose levels.
