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write an activity to demonstrate that plasmolysis occur only in living cell
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write an activity to demonstrate that plasmolysis occur only in living...
Activity to Demonstrate Plasmolysis in Living Cells
Materials Required:
- Microscope
- Microscope slide and cover slip
- Onion bulb
- Distilled water
- Salt solution (10%)
Procedure:
- Take a thin slice of the onion bulb and place it on a microscope slide.
- Add a few drops of distilled water on the onion slice and cover it with a cover slip.
- Observe the onion cells under the microscope and note down the appearance of the cells.
- Remove the cover slip carefully and add a few drops of 10% salt solution on the onion slice.
- Cover the onion slice with the cover slip and observe the cells again under the microscope.
- Note down the appearance of the cells after adding the salt solution.
Observations:
- Before adding the salt solution, the onion cells will appear turgid and normal under the microscope.
- After adding the salt solution, the onion cells will appear shrunken and plasmolysed under the microscope.
Explanation:
- Plasmolysis occurs only in living cells because it is a result of the movement of water molecules out of the cell due to osmosis.
- In this experiment, when distilled water is added to the onion slice, the water molecules move into the onion cells due to the higher concentration of solutes inside the cells.
- This results in the cells becoming turgid and normal under the microscope.
- However, when salt solution is added to the onion slice, the water molecules move out of the cells due to the higher concentration of solutes outside the cells.
- This results in the cells becoming shrunken and plasmolysed under the microscope.
- Therefore, this experiment demonstrates that plasmolysis occurs only in living cells as it is a result of the movement of water molecules across the cell membrane.
Conclusion:
- Plasmolysis is a crucial process that occurs in living cells due to the movement of water molecules across the cell membrane.
- This experiment demonstrates that plasmolysis occurs only in living cells and not in dead cells.
- Therefore, it is important to understand the concept of plasmolysis to comprehend the functioning of living cells and their survival mechanisms.
Community Answer
write an activity to demonstrate that plasmolysis occur only in living...
take a plant cell of any colourful plant and put it in a concentrated salt or sugar solution.After sometime we can see that the colour of the plant cell becomes dark or dull this is because the protoplasm is shrinked away.😜
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write an activity to demonstrate that plasmolysis occur only in living cell
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write an activity to demonstrate that plasmolysis occur only in living cell for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about write an activity to demonstrate that plasmolysis occur only in living cell covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for write an activity to demonstrate that plasmolysis occur only in living cell.
write an activity to demonstrate that plasmolysis occur only in living cell for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about write an activity to demonstrate that plasmolysis occur only in living cell covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for write an activity to demonstrate that plasmolysis occur only in living cell.
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