A snack contains 200 calories, with 10 grams of protein, 20 grams of carbohydrat
Practice Questions
Q1
A snack contains 200 calories, with 10 grams of protein, 20 grams of carbohydrates, and 5 grams of fat. What percentage of the total calories comes from protein? (2019)
10%
20%
25%
30%
Questions & Step-by-Step Solutions
A snack contains 200 calories, with 10 grams of protein, 20 grams of carbohydrates, and 5 grams of fat. What percentage of the total calories comes from protein? (2019)
Step 1: Understand that each gram of protein provides 4 calories.
Step 2: Calculate the calories from protein by multiplying the grams of protein (10g) by 4 calories per gram: 10g * 4 = 40 calories.
Step 3: Find the total calories in the snack, which is given as 200 calories.
Step 4: Calculate the percentage of calories from protein by dividing the calories from protein (40 calories) by the total calories (200 calories): 40 / 200.
Step 5: Multiply the result from Step 4 by 100 to convert it to a percentage: (40 / 200) * 100 = 20%.
Caloric Contribution of Macronutrients – Understanding how to calculate the caloric contribution of protein, carbohydrates, and fats based on their gram amounts and respective caloric values (4 calories per gram for protein and carbohydrates, 9 calories per gram for fat).
Percentage Calculation – Calculating the percentage of total calories that come from a specific macronutrient.
