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

Osmosis

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Osmosis

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Multiple Choice

A single plant cell is placed in an isotonic solution. Salt is then added to the solution. Which of the following would occur as a result of the salt addition?

The added salt would enter the cell, causing the cell to take up water and swell.

Water would enter the cell by osmosis, and the cell would swell.

There would be no osmotic movement of water in response to the added salt.

The added salt makes the solution hypotonic compared to the cell. Water will enter the cell by osmosis.

Water would leave the cell by osmosis, causing the volume of the cytoplasm to decrease.

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Verified step by step guidance

Understand the initial condition: The plant cell is in an isotonic solution, meaning the concentration of solutes inside the cell is equal to the concentration outside the cell, resulting in no net movement of water across the cell membrane.

Consider the effect of adding salt to the solution: Adding salt increases the solute concentration outside the cell, making the external solution hypertonic compared to the inside of the cell.

Apply the concept of osmosis: Osmosis is the movement of water across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Predict the direction of water movement: Since the external solution is now hypertonic, water will move out of the cell to balance the solute concentrations, leading to a decrease in the cell's volume.

Conclude the outcome: As water leaves the cell, the volume of the cytoplasm decreases, which is consistent with the correct answer provided.