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ICSE Class 10 Biology Question 3 of 11

Absorption by Roots — The Process Involved — Question 9

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Question

Question 9

Addition of salt to pickles is a method of killing the bacteria by :

  1. Imbibition
  2. Diffusion
  3. Deplasmolysis
  4. Plasmolysis
Answer

Plasmolysis

Reason — Adding salt to the pickle increases the concentration of solute outside the cells of bacteria. This results in movement of water outwards from the cell and thus bacteria gets killed.