Tonicity Worksheet
Grade 9 Science worksheet covering tonicity, osmosis, and the effects of different solutions on animal and plant cells.
Includes
Standards
Topics
Tonicity: Cell Environments
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Use complete sentences where appropriate.
1. What term describes a solution with a higher solute concentration than the cell cytoplasm, causing water to move out of the cell?
Isotonic
Hypotonic
Hypertonic
Equilibrium
2. When an animal cell is placed in a hypotonic solution, what is the most likely outcome?
The cell will shrink.
The cell will swell and may burst.
The cell will remain unchanged.
The cell will undergo plasmolysis.
3. The movement of water across a selectively permeable membrane from an area of high water concentration to an area of low water concentration is called .
4. When a plant cell is placed in a hypertonic solution, its cell membrane pulls away from the cell wall in a process called .
5. A cell placed in an isotonic solution will neither gain nor lose water.
True
False
6. Plant cells are less susceptible to bursting in hypotonic solutions compared to animal cells due to their cell walls.
True
False
7. Describe the process of osmosis and its importance for cell survival.
8. Explain why drinking too much pure water can be dangerous for humans at a cellular level.
Match each term with its correct definition.
A. Hypertonic
1. Solution with equal solute concentration to the cell
B. Hypotonic
2. Solution with higher solute concentration than the cell
C. Isotonic
3. Solution with lower solute concentration than the cell