Advertisements
Advertisements
प्रश्न
Explain why:
Bacteria and fungi do not grow in pickles, jams, jellies and squashes.
Advertisements
उत्तर
Jam, jellies and pickles are kept in hypertonic solution of sugar or salt in which plasmolysis of bacteria and fungi takes place. This kills the bacteria and fungi and hence, pickles, jam and jellies are preserved properly.
संबंधित प्रश्न
The bending movements of certain flowers towards the sun and the sleep movements of certain plants at night are examples of ______.
When placed in a more concentrated solution, the cell contents will ______.
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
The shrinkage of protoplasm, when a cell is kept in hypotonic solution.
Show by a series of diagrams, the change which a plant cell will undergo when placed in
Hypertonic salt solution
What is the significance of diffusion?
Give Reasons for the following.
Salt and sugar are used in preserving food.
Give Reasons for the following.
Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered. Why?
Fill in the Blank
Raisin swells up when kept in a __________ solution.
Explain the Term: Endosmosis
