Igcse Model Questions Vol1 2020 Biology Question 3

Practice practical question 3 from the 2020 Igcse Model Questions Vol1 Biology examination. This question covers Nutrition .

Igcse Model Questions Vol1 2020 Biology Practical
Topic: Nutrition
Question 3 IGCSE_MODEL_QUESTIONS_VOL1 • 2020 • BIOLOGY • practical

A student prepares a simple diet plan for a 12‑year‑old pupil. The daily menu consists of the following foods: - 150 g of boiled rice (carbohydrate 28 g per 100 g, protein 2.5 g per 100 g, fat 0.3 g per 100 g) - 100 g of grilled chicken breast (protein 31 g per 100 g, fat 3.6 g per 100 g, carbohydrate 0 g) - 80 g of mixed vegetables (carbohydrate 7 g per 100 g, protein 2 g per 100 g, fat 0.2 g per 100 g) - 250 ml of whole milk (carbohydrate 5 g per 100 ml, protein 3.3 g per 100 ml, fat 3.5 g per 100 ml) The Atwater factors are: carbohydrate 4 kcal g⁻¹, protein 4 kcal g⁻¹, fat 9 kcal g⁻¹. The recommended daily intake for a 12‑year‑old is 2000 kcal, with at least 50 g protein, 260 g carbohydrate and 70 g fat. Answer the following:

Question Parts

( a )
Calculate the total energy (kcal) supplied by the diet.
( b )
Calculate the percentage contribution of each macronutrient to the total energy.
( c )
State whether the diet meets the recommended intake for energy, protein, carbohydrate and fat. Provide a brief justification for each nutrient.
( d )
Suggest one specific change to the diet that would improve its overall nutritional balance and explain why it would be effective.

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About This Question

This is Igcse Model Questions Vol1 2020 Biology Question 3. It is one of the practical questions from the 2020 Igcse Model Questions Vol1 Biology examination.

The question covers Nutrition .

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