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

Osmosis

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Osmosis

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Multiple Choice

Osmosis is best defined as the movement of:

Water molecules across a semi-permeable membrane into a region of low solute concentration

Solute molecules from an area of high concentration to an area of lower concentration

Water molecules across a semi-permeable membrane into a region of high solute concentration

Water molecules inside a cell that can't be transported out

Solute molecules from an area of low concentration to an area of higher concentration

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Verified step by step guidance

Understand the concept of osmosis: Osmosis is the movement of water molecules across a semi-permeable membrane. It occurs from a region of low solute concentration to a region of high solute concentration, aiming to equalize solute concentrations on both sides of the membrane.

Identify the key components involved in osmosis: The process involves water molecules and a semi-permeable membrane, which allows only certain molecules to pass through, typically water, while blocking solutes.

Recognize the direction of movement: In osmosis, water moves towards the area with higher solute concentration. This is because the water molecules are trying to dilute the higher concentration of solutes, achieving equilibrium.

Distinguish osmosis from diffusion: While diffusion involves the movement of solute molecules from high to low concentration, osmosis specifically refers to the movement of water molecules towards higher solute concentration.

Apply the definition to the options provided: The correct definition of osmosis is the movement of water molecules across a semi-permeable membrane into a region of high solute concentration, which matches one of the given options.