Osmosis and Tonicity Worksheet
Explore the principles of osmosis, tonicity, and their effects on plant and animal cells with this comprehensive grade 10 science worksheet.
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Osmosis and Tonicity: Grade 10 Science
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Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. Which of the following best describes osmosis?
Movement of solute from high to low concentration.
Movement of solvent from high to low concentration across a semipermeable membrane.
Movement of solvent from low to high concentration.
Movement of solute from low to high concentration against a gradient.
2. A plant cell placed in a hypotonic solution will likely:
Shrink due to water loss.
Burst due to excessive water intake.
Become turgid as water moves into the cell.
Maintain its normal shape and size.
3. The net movement of water molecules from a region of higher water concentration to a region of lower water concentration across a selectively permeable membrane is called .
4. A solution with a higher concentration of solutes than the cell's cytoplasm is described as .
5. When an animal cell is placed in a hypertonic solution, it will undergo , which means it will shrink.
6. Distinguish between a hypotonic, isotonic, and hypertonic solution in terms of solute concentration relative to a cell.
7. Plant cells have a cell wall that prevents them from bursting in a hypotonic solution.
True
False
8. Facilitated diffusion requires energy in the form of ATP.
True
False
9. Observe the diagrams below showing a plant cell and an animal cell. Describe what would happen to each cell if placed in a hypertonic solution, explaining the underlying principles of osmosis.
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