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a) Obesity increases the risk of a person developing cardiovascular disease - Edexcel - GCSE Biology - Question 2 - 2018 - Paper 1
Question 2
a) Obesity increases the risk of a person developing cardiovascular disease. Losing weight can reduce the risk of this disease occurring. Explain why exercise can ca... show full transcript
Worked Solution & Example Answer:a) Obesity increases the risk of a person developing cardiovascular disease - Edexcel - GCSE Biology - Question 2 - 2018 - Paper 1
Step 1
Explain why exercise can cause weight loss.
Answer
Exercise burns calories, which requires energy and uses respiration. When a person engages in physical activity, they mobilize stored energy from fat, contributing to weight loss. Additionally, regular exercise increases metabolic rate even after the activity has ceased, further aiding in reducing fat reserves.
Step 2
Figure 2 shows a gastric band fitted to a stomach.
Answer
The gastric band reduces the volume of the stomach, which in turn limits food intake. By restricting the amount of food that can be consumed, the gastric band helps promote weight loss as it encourages the body to utilize stored fat and lipids for energy.