Questions: Check Which calories (kcal) value is correct? a. Proteins contribute 9 kcal per gram. b. Ethanol contributes 6 kcal per gram. c. Carbohydrates contribute 4 kcal per gram. d. Lipids contribute 4 kcal per gram.

Check Which calories (kcal) value is correct? a. Proteins contribute 9 kcal per gram. b. Ethanol contributes 6 kcal per gram. c. Carbohydrates contribute 4 kcal per gram. d. Lipids contribute 4 kcal per gram.
Transcript text: Check Which calories (kcal) value is correct? a. Proteins contribute 9 kcal per gram. b. Ethanol contributes 6 kcal per gram. c. Carbohydrates contribute 4 kcal per gram. d. Lipids contribute 4 kcal per gram.
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Solution

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The answer is the third one (c): Carbohydrates contribute 4 kcal per gram.

Explanation for each option: a. Proteins contribute 9 kcal per gram.

  • This is incorrect. Proteins actually contribute 4 kcal per gram.

b. Ethanol contributes 6 kcal per gram.

  • This is incorrect. Ethanol (alcohol) contributes 7 kcal per gram.

c. Carbohydrates contribute 4 kcal per gram.

  • This is correct. Carbohydrates indeed contribute 4 kcal per gram.

d. Lipids contribute 4 kcal per gram.

  • This is incorrect. Lipids (fats) contribute 9 kcal per gram.

Summary: The correct value is that carbohydrates contribute 4 kcal per gram.

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