Question

Describe how you would demonstrate the process of (i) plasmolysis (ii) Osmosis, using living material.

Answer 1

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Since plasmolysis is the loss of water from a cell, it occurs when a cell is in a hypertonic solution. Conversely, when a cell is placed into a hypotonic solution, there is a lower solute concentration outside the cell than inside, and water rushes into the cell.

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Answer 2

Answer:

Plasmolysis can be easily demonstrated in the lab by immersing a living cell in a strong salt solution and Osmosis occurs when water passes through a semipermeable membrane from a low solute concentration (low osmolarity) to a high solute concentration (high osmolarity).

Explanation:

(i) Process of Plasmolysis:

Plasmolysis can be easily demonstrated in the lab by immersing a living cell in a strong salt solution. Water from the cell sap moves out of the plant cells when they are placed in the concentrated salt solution due to osmosis. Plasmolysis causes all of the cell membranes to peel away from the cell walls, causing the plant cells to shrivel and shrink. Fresh flowers are used in another experiment to demonstrate plasmolysis. You can keep a freshly cut flower alive for days by placing it in a cup or jar of plain water. Plasmolysis is the process of a plant cell's cytoplasm shrinking away from the cell wall and toward the center. Water moves from the intracellular to the extracellular space, causing this phenomenon.

(ii) Process of Osmosis, using living material:

Osmosis occurs when water passes through a semipermeable membrane from a low solute concentration (low osmolarity) to a high solute concentration (high osmolarity). One of the most important ways that plants and animals achieve homeostasis is through osmosis. To help explain this phenomenon, we've compiled a list of a few excellent examples of osmosis that we come across in our daily lives. The skin and gills of fish absorb water. Plants Absorb Water From The Soil, Red Blood Cells in Freshwater, Salt on Slugs. In living organisms, osmosis is extremely important. It facilitates the transport of nutrients from one cell to the next, as well as the removal of waste metabolic products from the cell. Blood purification in the kidneys is also important.