Virtual Lab - Objectives
- Define the term "water potential."
- Explain how to measure the water potential of a solution.
- Describe how a laboratory centrifuge works.
- Define the terms "hypotonic," "isotonic," and "hypertonic."
- Explain what happens at the molecular level when a cell is placed in hypotonic or hypertonic solutions.
- Describe the biological consequences of water gain or loss in a cell.
- Define the term "plasmolysis."
- Explain why plant cells thrive in hypotonic solutions, while animal cells may rupture.
- Calculate the percent viability of a cell sample.
- Use cell viability data to determine the best solution for hypotonic lysis.
- Explain the molecular basis for selective precipitation.
- Explain how selective precipitation can be used to separate a mixture of proteins.
- Illustrate the processes of diffusion and osmosis during a dialysis experiment.
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