14. How many kcalories are provided by a 2-oz brownie with icing? Its nutrient c

Question

14. How many kcalories are provided by a 2-oz brownie with icing? Its nutrient composition Is 1g of protein, 5g of fat, and 15g of carbohydrates a. 89 b. 109 C. 84 d. 159 5. Which of the following provides the most kcalories? a. 5g carbohydrate b. 3g fat c. 4g protein d. 2g alcohol 6. One-half of a mashed potato with milk contains 2g of protein, 1g of fat, and 14g of carbohydrate. What percentage of the total kcalorie content is provided by carbohydrates a. 19% b. 72% c. 82% d. 77% e or False: A nutrition facts label can list 0 grams of fat even if the food does in fact Tru ntain some fat.

Explanation / Answer

The amount of calories released by different nutrients (carbohydrates, fats, proteins etc) is measured in calories per gram. Fats have the most energy and proteins have the same amount as carbohydrates, but their value as a source of energy is determined by more than the calories gained from 1 gram.

Carbohydrate have 4 calories per gram

Fats have 9 calories per gram

proteins have 4 calories per gram

1. Answer to Q14 is

2 oz of brownie with nutrients compositin of

1g protein yeild 4 calories

5g fat yield 45 calories

15g carbohydrate yield 60 calories

therefore answer is 4cal + 45cal + 60cal = 109cal (b)

2. answer to Q15

looking at each option and the amount of energy released

a. 5g carbohydrate releases = 20kcal

b. 3g fat releases = 27kcal

c. 4g protein releases = 16kcal

d. 2g alcholo releases = 14kcal (since,1g alcohol releases 7kcal per gram)

so the answer which provides the most kcal is (b) 3g of fat

3. answer to Q16

The total kcal provided by the mashed potato with milk with 2g protein(8kcal) + 1g fat (9kcal) + 14g carbohydrate (56kcal) = 73 kcal

out of the total 73 kcal , the percentage of total kcal provided by carbohydrate(56 kcal) = 56/73 *100= 76.71% or rounded to 77 %

So therefore the answer is (d) 77%

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