Ch 15: Nutrient Sources & Functions

About This Chapter

Explore fun video lessons in this chapter to improve your knowledge of nutrient sources and functions. Multiple-choice quizzes and a practice exam ensure you have the quality grasp you need to excel on an upcoming test.

Nutrient Sources & Functions - Chapter Summary

Building your understanding of nutrient sources and functions is simple by reviewing the entertaining lessons in this self-paced chapter. Our instructors make it easy to fully comprehend the structure and function of lipids, how stress affects digestion, the importance of carbohydrates and more. When you're finished with this chapter, you will be able to:

  • Define nutrition
  • Share a description of energy-yielding nutrients
  • Differentiate between organic and inorganic nutrients
  • Offer the definition of carbohydrates
  • List and discuss foods that are sources of lipids
  • Describe protein's primary functions in the body
  • Explain sources of and recommended intakes of protein
  • Detail how nutrients are transported around the body

Each lesson in this chapter is accompanied by a short quiz you can take at your convenience to assess your comprehension of key concepts. If you need help grasping any topics covered in the lessons, feel free to submit them to our subject-matter experts via the Dashboard. Our practice exam offers a quality review of the chapter, ensuring you have the knowledge needed to excel on your exam. Around-the-clock mobile access lets you utilize these resources whenever your schedule allows.

11 Lessons in Chapter 15: Nutrient Sources & Functions
Test your knowledge with a 30-question chapter practice test
What is Nutrition?

1. What is Nutrition?

Nutrition is the process of taking in nutrients from the foods you eat. Learn about the six nutrients needed for energy, maintenance of tissues and regulation of bodily processes: carbohydrates, fats, proteins, water, vitamins and minerals.

Energy-Yielding Nutrients: Carbohydrates, Fat & Protein

2. Energy-Yielding Nutrients: Carbohydrates, Fat & Protein

Carbohydrates, fats and proteins are referred to as the three energy-yielding nutrients because they provide your body with energy that is measured in calories. You'll also learn about another substance that can provide your body with calories, even though it is not a nutrient.

Organic vs Inorganic Nutrients: Differences & Importance

3. Organic vs Inorganic Nutrients: Differences & Importance

The presence or absence of carbon is what differentiates organic nutrients from inorganic nutrients. Carbohydrates, lipids, proteins and vitamins have carbon in their structure, making them organic. Water and minerals do not, so they are inorganic.

What Are Carbohydrates? - Sources & Intake Guidelines

4. What Are Carbohydrates? - Sources & Intake Guidelines

Do you know which foods contain carbohydrates? Learn sources of both simple and complex carbohydrates, as well as how many carbs you should consume each day to stay healthy and avoid disease, in this lesson.

The Importance of Carbohydrates: Functions & Impact of Deficiency

5. The Importance of Carbohydrates: Functions & Impact of Deficiency

The main function of carbohydrates is to provide the body and brain with energy. An adequate intake of carbs also spares proteins and helps with fat metabolism. Learn about the roles carbohydrates play and what happens when you don't get enough of them.

Structure and Function of Lipids

6. Structure and Function of Lipids

Molecules called lipids have long hydrocarbon chains that determine the way they act. They can be fats, oils, or hormones, and even exist in our cell membranes. Learn more about the chemical structure and biological function of various lipids in this lesson.

Foods That Are Sources of Lipids

7. Foods That Are Sources of Lipids

Fats add flavor to the foods you love. Yet, eating too many unhealthy fats, such as saturated fats, trans fats and cholesterol, can lead to health problems. Learn which foods contain these unhealthy fats and which ones contain fats that promote health in this lesson.

Primary Functions of Protein in the Body

8. Primary Functions of Protein in the Body

Protein is a vital molecule that carries out many functions in your body. Learn how proteins provide structure, regulate body processes, transport materials throughout your body, help your immune system and act as a source of energy.

Proteins: Food Sources & Recommended Intakes

9. Proteins: Food Sources & Recommended Intakes

Do you know which foods provide the best source for protein? Learn about both animal-based and plant-based foods that contain protein in this lesson. It will also show you how much protein you should consume each day to stay healthy and avoid disease.

How are Nutrients Transported Around the Body?

10. How are Nutrients Transported Around the Body?

There are specific steps involved in nutrient transportation to ensure that your body gets what it needs to function properly. This lesson explores how nutrients are transported throughout your body.

How Stress Affects Digestion

11. How Stress Affects Digestion

Stress can do more to your digestive system than leave you with an upset stomach. Learn how stress affects digestion, including conditions that have been linked to stress, such as irritable bowel syndrome and inflammatory bowel disease.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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