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

Properties of Water- The Universal Solvent

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Properties of Water- The Universal Solvent

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Multiple Choice

How does the polarity of water contribute to its ability to dissolve so many substances?

Water's polarity allows it to form covalent bonds with many substances.

Natural water has a pH of approximately 5.6, which is slightly acidic. Acids can dissolve more substances than bases can.

Because it is polar, water forms ionic bonds with the ions in substances such as NaCl (salt).

Because it is polar, water's negatively charged oxygen atoms and positively charged hydrogen atoms are attracted to positively and negatively charged ions and molecules.

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Verified step by step guidance

Understand the concept of polarity: Water is a polar molecule, meaning it has a partial positive charge on one side (hydrogen atoms) and a partial negative charge on the other side (oxygen atom).

Recognize how polarity affects interactions: The polarity of water allows it to interact with other charged particles, such as ions and polar molecules, through electrostatic attractions.

Explore the process of dissolution: When a substance like NaCl (salt) is added to water, the positive sodium ions (Na⁺) are attracted to the negative oxygen atoms of water, and the negative chloride ions (Cl^-) are attracted to the positive hydrogen atoms of water.

Consider the role of hydrogen bonds: Water molecules can form hydrogen bonds with other polar molecules, further aiding in the dissolution process by surrounding and separating individual ions or molecules.

Summarize the effect of water's polarity: The ability of water to dissolve many substances is primarily due to its polar nature, which allows it to surround and interact with various charged and polar particles, effectively breaking them apart and keeping them in solution.