Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

2. Cell Chemistry & Cell Components

Lipids

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Lipids

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Problem 3

Textbook Question

Macronutrients .a. include carbohydrates and vitamins;b. should make up a small percentage of a healthful diet;c. are essential in minute amounts to help enzymes function;d. include carbohydrates, fats, and proteins;e. are synthesized by cells and not necessary to obtain from the diet

Verified step by step guidance

Identify the definition of macronutrients in the context of nutrition.

Understand that macronutrients are nutrients required in large amounts for energy and growth.

Recognize that macronutrients include carbohydrates, fats, and proteins, which are essential for the body's energy needs.

Eliminate options that do not align with the definition of macronutrients, such as those involving vitamins or small dietary percentages.

Select the option that correctly lists carbohydrates, fats, and proteins as macronutrients.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Macronutrients

Macronutrients are the nutrients required by the body in large amounts to provide energy and support bodily functions. They primarily include carbohydrates, proteins, and fats, which are essential for growth, metabolism, and overall health. Unlike micronutrients, which are needed in smaller quantities, macronutrients are the main components of our diet.

Role of Macronutrients in Diet

Macronutrients should constitute a significant portion of a balanced diet, typically around 45-65% of total daily calories. Each macronutrient plays a unique role: carbohydrates provide energy, proteins are vital for tissue repair and growth, and fats support cell structure and hormone production. Understanding their roles helps in making informed dietary choices.

Essential Nutrients

Essential nutrients are substances that the body cannot synthesize on its own and must be obtained through diet. While macronutrients are essential for energy and bodily functions, they must be consumed in appropriate amounts to maintain health. This contrasts with non-essential nutrients, which the body can produce as needed.