Explain how carbohydrates as a macronutrient support efficient movement during both aerobic and anaerobic activities. (4 marks)
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Sample Answer
- Carbohydrates are the most versatile fuel because they can provide energy with or without oxygen present.
- During aerobic activities, stored carbohydrates break down slowly which allows steady energy production for long-distance running and sustained movement.
- For anaerobic activities, carbohydrates provide quick energy without needing oxygen, thus enabling explosive power for sprinting and jumping.
- This flexibility occurs because carbohydrates can be used by different energy systems, therefore supporting both endurance and power activities effectively.
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Sample Answer
- Carbohydrates are the most versatile fuel because they can provide energy with or without oxygen present.
- During aerobic activities, stored carbohydrates break down slowly which allows steady energy production for long-distance running and sustained movement.
- For anaerobic activities, carbohydrates provide quick energy without needing oxygen, thus enabling explosive power for sprinting and jumping.
- This flexibility occurs because carbohydrates can be used by different energy systems, therefore supporting both endurance and power activities effectively.