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 Heart2h 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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Multiple Choice

Nutritionally, saturated triacylglycerols are considered to be less healthful than unsaturated triacylglycerols. What is the difference between them?

Saturated triacylglycerols are fats; unsaturated triacylglycerols are carbohydrates.

Saturated triacylglycerols have more double bonds than unsaturated triacylglycerols do.

Saturated triacylglycerols are liquid at room temperature.

All of the listed responses are correct.

For carbon skeletons of equal length, saturated triacylglycerols have more hydrogen atoms than unsaturated triacylglycerols do.

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Verified step by step guidance

Understand the basic structure of triacylglycerols: They are composed of a glycerol backbone bonded to three fatty acid chains.

Differentiate between saturated and unsaturated fatty acids: Saturated fatty acids have no double bonds between carbon atoms, meaning they are 'saturated' with hydrogen atoms. Unsaturated fatty acids contain one or more double bonds, which reduce the number of hydrogen atoms attached to the carbon skeleton.

Analyze the physical state at room temperature: Saturated fats are typically solid at room temperature due to their straight chains, which allow them to pack closely together. Unsaturated fats, with their kinks caused by double bonds, are usually liquid.

Consider the nutritional implications: Saturated fats are often considered less healthful because they can contribute to higher cholesterol levels and cardiovascular disease risk, whereas unsaturated fats are generally seen as more beneficial for heart health.

Conclude with the correct statement: For carbon skeletons of equal length, saturated triacylglycerols have more hydrogen atoms than unsaturated triacylglycerols due to the absence of double bonds in their structure.