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(D) $\Rightarrow$ There are three types of solutions based on their osmotic concentration relative to the cytoplasm: Isotonic,Hypotonic,and Hypertonic

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(D) $\Rightarrow$ There are three types of solutions based on their osmotic concentration relative to the cytoplasm: Isotonic,Hypotonic,and Hypertonic solutions.$\Rightarrow$ $1.$ Isotonic solution: When the external solution balances the osmotic pressure of the cytoplasm,it is called an isotonic solution. In this state,there is no net movement of water across the cell membrane.$\Rightarrow$ $2.$ Hypotonic solution: If the external solution is more dilute than the cytoplasm (lower solute concentration),it is called a hypotonic solution. In this case,water moves into the cell,causing it to swell.$\Rightarrow$ $3.$ Hypertonic solution: If the external solution is more concentrated than the cytoplasm (higher solute concentration),it is called a hypertonic solution. In this case,water moves out of the cell,causing it to shrink or undergo plasmolysis.

Explain three types of solutions based on their effect on plant cells.

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