Question

1 gram Fats provides energy -

• A. 4 Kcal/g
• B. 12 Kcal/g
• C. 5 Kcal/g
• D. 9 Kcal/g

Hint:

Carbohydrate 4, protein 4, fat 9 Kcal per gram.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Each nutrient gives a fixed amount of energy when the body burns it. This is measured in kilocalories (Kcal) per gram.

Step 2: Key Facts:
Carbohydrates give 4 Kcal per gram. Proteins give 4 Kcal per gram. Fats give 9 Kcal per gram. Alcohol gives about 7 Kcal per gram.

Step 3: Check option (1) 4 Kcal/g:
This is the value for carbohydrates and proteins, not fats. So it is wrong.

Step 4: Check option (2) 12 Kcal/g:
No nutrient gives 12 Kcal per gram. So it is wrong.

Step 5: Check option (3) 5 Kcal/g:
This is not the energy value of any main nutrient. So it is wrong.

Step 6: Check option (4) 9 Kcal/g:
Fats have more than twice the energy of carbohydrates, because their molecules have more carbon and hydrogen to burn. The value is 9 Kcal per gram, so option 4 is correct.

Final Answer:
One gram of fat gives 9 Kcal of energy. The answer is option 4.