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Question
Addition of salt to pickles is a method of killing the bacteria by ______.
Options
Imbibition
Diffusion
Deplasmolysis
Plasmolysis
Solution
Addition of salt to pickles is a method of killing the bacteria by plasmolysis.
Explanation:
Salt added to the pickle raises the solute concentration outside of the bacterial cells. As a result, water moves outside of the cell and kills the bacteria.
RELATED QUESTIONS
The diagram below represents a process in plants. The setup was placed in bright sunlight. Answer the following questions:
a) Name the physiological process depicted in the diagram.
Why was oil added to the water?
b) When placed in bright sunlight for four hours, what do you observe with regard to the initial and final weight of the plant? Give a suitable reason for your answer
c) What happens to the level of water when this setup is placed in:
- Humid conditions?
- Windy conditions?
d) Mention any three adaptations found in plants to overcome the process mentioned in (i).
e) Explain the term ‘Guttation’.
Differentiate between the following:
Turgidity and Flaccidity
Mention whether the following statement is true or false Correct the false statement by altering the last word only.
Cells that have lost their water content are said to be deplasmolysed.
Give reason for the following:
It is better to transplant seedlings in a flower-bed in the evening and not in the morning.
Differentiate between:
Turgid and Flaccid.
Fill in the Blank
Wilting and drooping of leaves is due to loss of ________.
Multiple Choice Question:
When cell is fully turgid, which of the following will be zero?
The hydrostatic pressure of the cell sap on the cell wall is called ______.
When the cells of a plant are fully distended, the condition is called ______.
