Question

1 Make a temporary potato osmoscope to study osmosis. Sketch & label the diagram showing the change in the water level.​

Answer 1

Explanation:

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Answer 2

Answer:

The potato osmoscope can be used to demonstrate osmosis in a living organism.

Explanation:

Osmosis is the process by which solvent molecules move from an area of greater concentration to an area of lower concentration through a semi-permeable membrane. In other words, osmosis is the process by which hydrogen atoms are transferred across a cell's semipermeable membrane from a solution containing a high concentration of water molecules to a solution containing a reduced concentration of water molecules. A selectively permeable barrier allows for the passage of only specific molecules or ions.

By equalizing the amounts on both sides of a membrane, osmosis achieves its desired result. Osmosis has a thermodynamic benefit because the system becomes more stable as it gets closer to equilibrium.

Potato Osmoscope: The potato osmoscope can be used to demonstrate osmosis in a living organism.

Requirements: Potato, pins, sugar solution, beaker, colored water.

Experiment:

• The base is made from a potato that has been peeled and flattened on one edge.
• A hole is drilled into the spud, which is then filled with a concentrated sugar solution and marked with a pin to show the starting level.
• The spud is then left in colored water-filled beaker for a while.

Observation: The sugar solution in the potato's interior is seen to change color and to accumulate at a higher level.

Inference: This experiment of potato osmoscope proves how the potato tissues allow the water to enter into the sugar solution. The potato cells act as a selective permeable barrier membrane.

The diagram of a potato osmoscope is demonstrated:

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