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

Seawater is hypertonic to cytoplasm in vertebrate cells and in plant cells. If a red blood cell and a plant cell were placed in seawater, what would happen to the two types of cells?

The red blood cell would burst, and the plant cell would shrink.

Both cells will gain water, but cell walls will prevent both cells from bursting.

Both cells would gain water by osmosis; the red blood cell would burst, and the plant cell would increase in turgor pressure.

The red blood cell would shrink, and the plant cell would gain water.

Both cells would lose water; the red blood cell would shrivel, and the plant plasma membrane would pull away from the cell wall.

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Verified step by step guidance

Understand the concept of tonicity: Tonicity refers to the relative concentration of solutes in two fluids separated by a semipermeable membrane. Hypertonic solutions have a higher concentration of solutes compared to the cytoplasm of cells.

Identify the effect of hypertonic solutions on animal cells: In a hypertonic environment, water will move out of the cell to balance the solute concentration, causing the cell to lose water and shrink. This process is known as crenation in red blood cells.

Identify the effect of hypertonic solutions on plant cells: Plant cells have a rigid cell wall that provides structural support. In a hypertonic environment, water will move out of the cell, causing the plasma membrane to pull away from the cell wall, a process known as plasmolysis.

Compare the effects on red blood cells and plant cells: Both types of cells will lose water when placed in seawater, which is hypertonic. The red blood cell will shrivel due to the loss of water, while the plant cell's plasma membrane will pull away from the cell wall.

Conclude the outcome based on the effects of hypertonic solutions: Both cells would lose water; the red blood cell would shrivel, and the plant plasma membrane would pull away from the cell wall, confirming the correct answer.