Question 31
Food Substances and EnzymesWhich of the following substances has the highest amount of energy in joules per unit weight?
- A.Carbohydrates
- B.Proteins
- C.Fats
- D.Vitamins
Show the answer and explanation
Answer: C (Fats)
Explanation
One gram of fat releases about 38 kJ, more than twice the energy of a gram of carbohydrate or protein (about 17 kJ).