What is the role of vitamins and minerals in the diet?

The roles of carbohydrate, fat, protein, vitamins and minerals, dehydration and its effects on the blood, heart, temperature and decisions, and keeping hydrated in sport.

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Key term

What is the role of carbohydrates in the diet?

Key term

What is the role of fat in the diet?

Key term

What is the role of protein in the diet?

Questions from this subtopic

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1
What is the role of carbohydrates in the diet?
Model answer
Carbohydrate is the body's first-choice fuel for exercise. Carbohydrates fuel activity of all types and all intensities.
2
What is the role of fat in the diet?
Model answer
Fat is also an energy source. Fat provides more energy than carbohydrate but only at low intensity.
3
What is the role of protein in the diet?
Model answer
Protein is used for the growth and repair of muscle tissue. Performers who build muscle, such as weightlifters, need plenty of it.
4
What is the role of vitamins and minerals in the diet?
Model answer
Vitamins and minerals keep the body systems working efficiently. Vitamins and minerals also maintain general health.
5
Why would a marathon runner eat plenty of carbohydrate before a race?
Model answer
Carbohydrate is the body's preferred fuel for exercise. Large carbohydrate stores give the runner energy for the whole race.
6
Why would a weightlifter increase their protein intake?
Model answer
Protein repairs the muscle tissue damaged in heavy training. Extra protein helps the muscles grow bigger and stronger.

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AThe aerobic training zone of a 20-year-old is 120–160 bpm.

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CThe zone runs from 0.6 × 200 = 120 bpm to 0.8 × 200 = 160 bpm.

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Tendon means tough tissue attaching a muscle to a bone.

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