Biology

Which of the following substances has the highest amount of energy in joules per unit…

Which of the following substances has the highest amount of energy in joules per unit weight?
  • A.
    Carbohydrates
  • B.
    Proteins
  • C.
    Fats
  • D.
    Vitamins
Correct Answer: Option C
Explanation

Fats and ethanol have the greatest amount of food energy per mass, 37 and 29 kJ/g (8.8 and 6.9 kcal/g), respectively. Proteins and most carbohydrates have about 17 kJ/g (4 kcal/g)