1. Define osmosis. 2. State ways to increase rate of osmosis. 3. Compare the results obtained before and after the experiment in beaker A. 4. Give a reason for the results obtained... 1. Define osmosis. 2. State ways to increase rate of osmosis. 3. Compare the results obtained before and after the experiment in beaker A. 4. Give a reason for the results obtained in beaker A. 5. Compare the results obtained before and after the experiment in beaker B.
Understand the Problem
The question is related to an experiment involving osmosis. It requires defining osmosis, stating ways to increase its rate, comparing experimental results, and explaining observations in beakers A and B.
Answer
1. Osmosis is water diffusion across a membrane. 2. Increase temperature and gradient. 3. Beaker A's mass increased. 4. Water uptake caused mass increase in A. 5. Beaker B's length rose, mass fell—water loss.
- Osmosis is the diffusion of water molecules through a selectively permeable membrane from a region of higher water concentration to an area of lower concentration. 2. Increase temperature and concentration gradient. 3. In Beaker A, length was constant, mass increased. 4. Mass increase in Beaker A suggests water uptake. 5. In Beaker B, length increased, mass decreased, indicating water loss.
Answer for screen readers
- Osmosis is the diffusion of water molecules through a selectively permeable membrane from a region of higher water concentration to an area of lower concentration. 2. Increase temperature and concentration gradient. 3. In Beaker A, length was constant, mass increased. 4. Mass increase in Beaker A suggests water uptake. 5. In Beaker B, length increased, mass decreased, indicating water loss.
More Information
Beaker A showed water gain likely due to an external solution being hypotonic. Beaker B showed water loss from a hypertonic solution condition.
Tips
Ensure that the osmotic gradient and temperature are adequately measured and controlled during experiments.
Sources
- 2.1: Osmosis - Biology LibreTexts - bio.libretexts.org
- 8.4: Osmosis and Diffusion - Chemistry LibreTexts - chem.libretexts.org
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