Question 39

Calories describe the amount of energy that can be derived from food.

Calories are a unit of measurement that quantify the amount of energy provided by food when consumed. They indicate how much energy the body can obtain from various foods, making this term essential in nutritional contexts.

A) Calories

This option is correct as calories directly refer to the energy content in food. When we consume food, the body metabolizes it to extract the energy measured in calories, which is crucial for bodily functions and physical activity.

B) Metabolism

Metabolism refers to the biochemical processes that occur within the body to convert food into energy. While it is related to how energy is derived from food, it does not specifically measure the energy content itself, making it an incorrect choice in this context.

C) Nutrient

Nutrients are substances in food that provide nourishment and are necessary for the body's functioning, including vitamins, minerals, carbohydrates, proteins, and fats. However, this term does not specifically describe the energy content of food, thus it is not the correct answer.

D) Vitamins

Vitamins are organic compounds that are essential for various bodily functions but do not provide energy themselves. They support metabolic processes but do not measure the energy derived from food, making this option irrelevant to the question.

Conclusion

Calories are the definitive term for measuring the energy derived from food, while the other options focus on different aspects of nutrition and bodily functions. Metabolism, nutrients, and vitamins contribute to health but do not specifically quantify energy content, thus affirming that calories are the correct answer.