Ask Question
5 June, 22:51

Calculate the energy provided by a slice of bread containing 2 g of protein, 1 g of fat, and 20 g of carbohydrate. record your answer using whole number.

+2
Answers (1)
  1. 6 June, 02:31
    0
    The energy provided by equal amounts of carbohydrates and fats are not the same. This means that 1 g of carbohydrates will give out a different value of calories than 1 g of fat.

    Proteins and carbohydrates both give 4 calories per gram,

    Fats give out 9 calories per gram,

    Therefore energy given by each food type is as follows;

    proteins - 2 g x 4 calories/g = 8 calories

    Carbohydrates - 20 g x 4 calories/g = 80 calories

    Fats - 1 g x 9 calories/g = 9 calories

    Total energy - 8+80 + 9 = 97 calories

    1 cal - 4.18 kJ

    Therefore 97 calories - 4.18 kJ/cal x 97 cal = 405 kJ
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Calculate the energy provided by a slice of bread containing 2 g of protein, 1 g of fat, and 20 g of carbohydrate. record your answer using ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers