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A food item contains 10 grams of carbohydrates, 5 grams of protein, and 2 grams

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Question: A food item contains 10 grams of carbohydrates, 5 grams of protein, and 2 grams of fat. How many total calories does this food item provide? (Carbohydrates = 4 cal/g, Protein = 4 cal/g, Fat = 9 cal/g) (2022)

Options:

  1. 66
  2. 58
  3. 62
  4. 64

Correct Answer: 62

Exam Year: 2022

Solution: 

Total calories = (10g * 4) + (5g * 4) + (2g * 9) = 40 + 20 + 18 = 78 calories.

A food item contains 10 grams of carbohydrates, 5 grams of protein, and 2 grams

Practice Questions

Q1
A food item contains 10 grams of carbohydrates, 5 grams of protein, and 2 grams of fat. How many total calories does this food item provide? (Carbohydrates = 4 cal/g, Protein = 4 cal/g, Fat = 9 cal/g) (2022)
  1. 66
  2. 58
  3. 62
  4. 64

Questions & Step-by-Step Solutions

A food item contains 10 grams of carbohydrates, 5 grams of protein, and 2 grams of fat. How many total calories does this food item provide? (Carbohydrates = 4 cal/g, Protein = 4 cal/g, Fat = 9 cal/g) (2022)
  • Step 1: Identify the amount of carbohydrates in the food item, which is 10 grams.
  • Step 2: Identify the amount of protein in the food item, which is 5 grams.
  • Step 3: Identify the amount of fat in the food item, which is 2 grams.
  • Step 4: Know the calorie values for each macronutrient: carbohydrates = 4 calories per gram, protein = 4 calories per gram, fat = 9 calories per gram.
  • Step 5: Calculate the calories from carbohydrates: 10 grams * 4 calories/gram = 40 calories.
  • Step 6: Calculate the calories from protein: 5 grams * 4 calories/gram = 20 calories.
  • Step 7: Calculate the calories from fat: 2 grams * 9 calories/gram = 18 calories.
  • Step 8: Add all the calories together: 40 calories (from carbohydrates) + 20 calories (from protein) + 18 calories (from fat) = 78 calories.
  • Caloric Calculation – Understanding how to calculate total calories from macronutrients using their respective caloric values.
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