IGCSE Physical Education Paper-1: Specimen Questions with Answers 235 - 238 of 256

Question number: 235

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Give one component of a balanced diet and explain its importance to a performer.

Explanation

Carbohydrates are one of the most important nutrients needed in an athlete’s diet. Carbohydrates are vital to help reach peak performance during physical activity because they provide energy and muscle gain.

Question number: 236

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Describe how two environmental factors might result in a reduction in performance.

Explanation

1) Exposure to altitude leads to increased breathing rate, increased heart rate, giddiness, nausea, headache, sleeplessness and decrease in VO2 max. , mainly it reduces working capacity.

2) Performing in high temperature, humid conditions the circulation cannot both supply nutrients to muscle and regulate body temperature to the complete satisfaction of the body.

Question number: 237

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Why are red blood cells important to a sports performer?

Explanation

A performer in physical activity needs plenty of oxygen. Red blood cells are important in this regard because the haemoglobin in them will give body cells oxygen needed for respiration and take away carbon dioxide, the waste product of respiration.

Question number: 238

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If a performer sprains an ankle, part of the recommended treatment is to elevate the leg. How does this action help recovery?

Explanation

Elevation minimizes swelling this is how this action helps in recovery.