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5 January, 07:17

15. A food sample contains 25 g carbohydrate, 8 g fat and 5 g protein. The energy content is:

A) 120 Cal

B) 160 Cal

C) 170 Cal

D) 200 Cal

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Answers (1)
  1. 5 January, 07:24
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    C) 170 Cal

    Explanation:

    We are given the composition of a food sample as;

    Carbohydrate = 25 g

    fat = 8 g

    Protein = 5 g

    We are needed to determine the energy content of the food;

    We need to know the amount energy yielded by each food substance.

    That is; carbohydrates and proteins generate 4 calories per gram while fats generates 9 calories per gram.

    Therefore;

    Amount of energy will be;

    = (25 * 4 cal/g) + (8g * 9 cal/g) + (5 g * 4 cal/g)

    = 172 cal

    Approximately, 170 calories

    Therefore, the energy content will be 170 calories
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