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  • What are the nutrients that provide energy?

  • What Nutrients Provide Energy? There are three main nutrients that provide energy which are carbohydrates, proteins and fats. They are also called macronutrients and are needed for metabolism, growth and other body functions.

  • What is the role of energy in the body?

  • This energy is used to drive the complex chemical, mechanical and electrical systems of the body. The rate of energy release from macronutrients by chemical processes occurring in the body is known as metabolic rate.

  • How do macronutrients provide energy to the body?

  • Energy requirements of the body. The macronutrients (carbohydrates, proteins, fats and oils) we consume in our diet help to supply the energy needed by the body to keep it working. This energy is used to drive the complex chemical, mechanical and electrical systems of the body.

  • What are the sources of energy for doing work?

  • In the United States and many other countries, most energy sources for doing work are nonrenewable energy sources: These energy sources are called nonrenewable because their supplies are limited to the amounts that we can mine or extract from the earth.

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