Question

We know that carbohydrates and proteins typically supply 4kcal of energy per gram and fats supply 9kcal of energy per gram. Using this information, calculate the number of Food Calories in a Snickers Bar if it contains 11 g of fat, 5 g of protein, and 37 g of carbohydrates.

Answer 1

Answer:

The number of food calories in a Snickers Bar is 267 kcal.

Explanation:

The number of Kcal provided by each kind of molecule is:

• For proteins:

$Energy = \frac{4Kcal}{g} .mass$

• For fat:

$Energy = \frac{9Kcal}{g} .mass$

• For carbohydrates:

$Energy = \frac{4Kcal}{g} .mass$

Replacing with the info given in the task:

• For proteins:

$Energy = \frac{4Kcal}{g} .5g=20kcal$

• For fat:

$Energy = \frac{9Kcal}{g} .11g=99kcal$

• For carbohydrates:

$Energy = \frac{4Kcal}{g} .37g=148kcal$

Total amount of energy = 20 kcal + 99 kcal + 148 kcal = 267 kcal