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The greatest amount of energy will be obtained by the oxidation of 100kg of…

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The greatest amount of energy will be obtained by the oxidation of 100kg of

A. meat

B. butter

C. sugar  

D. biscuits

QUICK ANSWER…

B

DETAILS…  

Among all the food classes, fats and oils have the largest quantity of energy, followed closely by carbohydrates. When burned, butter would release more energy than equal mass of any other class of food.

Now for the right answer to the above question:

  1. A is not the right answer. meat is protein.
  2. B is correct. butter is fat. It has the largest reserve of energy.
  3. C is incorrect. sugar is carbohydrate, its energy content is less than that of butter.
  4. D is incorrect. biscuits are also carbohydrates.

KEY-POINTS…

You may please note this/these:

  • The energy content of 1g of fat is about 37 kilo-joules.
  • The energy content of 1g of carbohydrate is = 17 kilo-joules.
  • The energy content of 1g of protein is = 17 kilo-joules.
  • For equal mass of different classes of food, fats and oils have the largest calorie of energy.
  • Fats and oils are followed closely by carbohydrates.

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/ culled from 2020 JAMB-UTME biology past question 40 /

The greatest amount of energy will be obtained by the oxidation of 100kg of... » QuizTablet
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