Calories: Definition, Purpose & Total Count


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question 1 of 3

Carbohydrates, proteins and fats are energy-yielding nutrients that collectively are referred to as what?

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1. Julia ate a meal with 25 grams of protein and 750 calories. How many of these calories came from protein?

2. Jose ate a hamburger with 38 grams of fat and 870 calories. How many of these calories came from fat?

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About This Quiz & Worksheet

Calories are the units of measurement describing how we gain energy. The printable worksheet and quiz will help you learn more about what they are and how to count them and test you on specific facts and examples.

Quiz & Worksheet Goals

Use these assessment tools to test your knowledge of:

  • What the term macronutrients refers to
  • How many calories a gram of protein provides
  • Which macronutrient provides 9 calories per gram
  • What an EER is
  • What nutrient gives us between 45 to 65% of our calories

Skills Practiced

This worksheet and quiz let you practice the following skills:

  • Defining key concepts - ensure that you can accurately define main phrases, such as macronutrients and Estimated Energy Requirement
  • Interpreting information - verify that you can view information regarding what calories are and what their purpose is, and interpret it correctly
  • Information recall - access the knowledge you've gained regarding different nutrients and how many calories they provide

Additional Learning

To learn more about how energy is acquired by humans and animals, review the corresponding lesson on defining and counting calories. This lesson covers the following objectives:

  • Define what calories are
  • Examine the differences between micronutrients and macronutrients
  • Discuss EERs and AMDRs
  • Summarize the process of how humans acquire energy