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

Noncovalent Bonds

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Noncovalent Bonds

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Multiple Choice

What is the role of van der Waals interactions in biological molecules?

Van der Waals interactions are too weak to be significant.

Van der Waals interactions are strong bonds that play a major structural role in holding proteins together.

Van der Waals interactions are important only in water.

Although they are weak bonds, van der Waals interactions help to reinforce the three-dimensional shapes of large molecules.

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Verified step by step guidance

Begin by understanding what van der Waals interactions are. These are weak forces that occur between molecules due to temporary dipoles formed when electrons move around the nucleus.

Recognize that van der Waals interactions are not strong like covalent or ionic bonds, but they are significant in large biological molecules due to their cumulative effect.

Consider the role of van der Waals interactions in proteins. They help stabilize the three-dimensional structure by providing additional reinforcement to the shape of the molecule.

Understand that van der Waals interactions are not limited to water; they occur in various environments and contribute to the stability of biological structures like proteins and nucleic acids.

Conclude that while individually weak, van der Waals interactions collectively contribute to the structural integrity and functionality of large biological molecules, such as proteins, by reinforcing their three-dimensional shapes.