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Page 1: soalan 5D2 Sc

Please answer the questions below :

Example :The table shows the caloric values for three food classes.Jadual menunjukkan nilai kalori bagi tiga kelas makanan.

Food class[Kelas makanan]

Calorific value per gram/kJ g-1

[Nilai kalori per gram/kJ g-1]Protein [Protein] 16.7

Fat [Lemak] 37.6

Carbohydrate [Karbohidrat] 16.7

Asiah eat food X which contains 2 g of protein, 2.5 g of fat and 6 g of carbohydrate. What is the caloric value of food X?Asiah memakan makanan X yang mengandungi 2 g protein, 2.5 g lemak, dan 6 g karbohidrat. Berapakah nilai kalori makanan X?

A. 74.6 kJ C. 227.6 kJB. 71.0 kJ D. 710.0 kJ

Answer : protein : 2.0 × 16.7 = 33.4 kJ fat : 2.5 × 37.6 = 94.0 kJ carbohydrate : 6.0 × 16.7 = 100.2 kJTherefore the total calorific value for food X = 33.4 + 94.0 + 100.2 = 227.6 kJ

2 Study the table below.Kaji jadual di bawah

Food[Makanan]

Calorific value/kJ per 100 g[Nilai kalori/kJ per 100 g]

Egg [Telur] 600

Meat [Daging] 1010

Rice [Nasi] 1470

What is the calorific value consumed by a teenager if he eats 250 g egg, 150 g meat and 200 g rice?Berapakah nilai kalori yang diperoleh seorang remaja yang makan 250 g telur, 150 g daging dan 200 g nasi?

A. 3080 kJ C. 4850 kJB. 4825 kJ D. 5955 kJ

1 The table shows the caloric values of three types of food .

Page 2: soalan 5D2 Sc

Please answer the questions below :

Example :Jadual menunjukkan nilai kalori bagi tiga jenis makanan.

Food [Makanan]

Calorific value /kJ g-1

[Nilai kalori /kJ g-1]Bread [Roti] 10.12

Hard-boiled egg [Telur rebus] 6.59

Milk [Susu] 2.68

A pupil takes 20 g of bread, 10 g of hard-boiled egg and 100g of milk for his breakfast. What is the total energy consumed?Seorang murid mengambil 20 g roti, 10 g telur rebus dan 100g susu untuk sarapannya. Berapakah jumlah tenaga yang diperolehinya?

A. 0.85 kJ C. 193.90 kJB. 19.39 kJ D. 536.30 kJ


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